For those topics one could describe as the forum equivalent of a twinkie. Word games, forum contests and giveaways are all the rage here.
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Fri Feb 10, 2006 7:10 am

1. Is the sum of the individual digits of the number, a prime number?

2. If this sum is a prime number, are the sum of the digits of that sum, also a prime number?

Fri Feb 10, 2006 6:08 pm

Do these numbers have any special significance to any sect/group?

Fri Feb 10, 2006 6:51 pm

theonlysaneone wrote:
XenaAndGabrielle wrote:Is the number 9785 ?
Is the number 9385 ?
Is the number 9365 ?
Is the number 9745 ?
Is the number 9705 ?
Is the number 9305 ?


:)

Yay me!


Yes. Everyone gets one guess each from here on out.


Does this mean I win? :) I wasn't trying to "cheat" ... I thought the point was to figure out the number.

Blk Mage wrote:Wow are those actually the numbers, i could probably never figure it out from just that(probably lots of stuff was given away, just didn't understand most of it).
No wonder XenaAndGabrielle is pro at stuff like LC and stuff, lol. Good job.


Thanks. :) Logic puzzles are fun.

Sorry I ruined everyone's fun.

Fri Feb 10, 2006 7:37 pm

Is the number 9365?

Fri Feb 10, 2006 10:19 pm

gemma58 wrote:1. Is the sum of the individual digits of the number, a prime number?

2. If this sum is a prime number, are the sum of the digits of that sum, also a prime number?


Yes and yes.

Tested wrote:Do these numbers have any special significance to any sect/group?


They're significant to me, but not to anyone else.

Matt wrote:Is the number 9365?


Nope. Sorry :(

Fri Feb 10, 2006 10:25 pm

7895?

xD

-didn't look through the what we had so far when making that guess, lol-

Sat Feb 11, 2006 1:21 am

guineadan wrote:7895?

xD

-didn't look through the what we had so far when making that guess, lol-


Nope.

Sat Feb 11, 2006 6:46 am

Is the number 9785 ?

Sat Feb 11, 2006 7:04 am

Since everyone is too afraid to ask, is the number divisible by any of the Lost numbers (5 8 15 16 23 42)?

Sat Feb 11, 2006 8:23 am

Is the number 9305?

Sat Feb 11, 2006 9:01 am

Skynetmain wrote:Since everyone is too afraid to ask, is the number divisible by any of the Lost numbers (5 8 15 16 23 42)?


Actually the numbers are 4 8 15 16 23 42, but no.

The number has not been guessed yet. (though it MAY have been mentioned)

Sat Feb 11, 2006 12:40 pm

Is the number 9365?

(it was the only one of the three numbers that I had on my list that was previously mentioned so it's the obvious guess)

If it isn't the about number I ask the following 2 questions to help others
Do the middle two numbers add up to a prime number?
Do any pair of numbers add up to another number included in it?

Sat Feb 11, 2006 1:03 pm

1.The number is an integer
2.The number is not prime
3.The number is not even
4.The number is not under 5000
5.The number is divisible by another four-digit number
6.The number is between 7500-10000
7.The number is not divisible by 3 or 7
*************************************************
8.
Is the first digit a prime number? No
Is it even? No

Is the second digit prime? Yes
Is it even? No

Is the third digit prime? No
Even? Yes
**************************************************
So far:

Xena got it down to six numbers whereas I got it down to 5 numbers (9705 is divisible by three)
My numbers were:
9305
9365
9385
9745
9785
then these questions were asked and answered:

*******************************************************
9.
Within its prime factors; are any numbers repeated?
(e.g. 5619 = 1873 x 3. 3 is repeated. 3891 = 3 x 1297. No numbers are repeated?) no

Does the number contain a 7? maybe
******************************************************
10.
Does it contain the number 9? Yes

Is the last number prime? Yes
*****************************************************
Prime Factors ------ Number -- Sum of digits -- Sum of(sum of digits)
5.............. 1861........ 9305........... 17............ 8
5.............. 1873........ 9365........ 23............ 5
5.............. 1877........ 9385........ 25............ 7
5.............. 1949........ 9745........ 25............ 7
5*19*103. 1957........ 9785........ 29............ 11

So I asked the following:
******************************************************
11. Is the sum of the individual digits of the number, a prime number? YES

********************************************************

The following numbers are ruled OUT: (reason given by question number)

Prime Factors ------ Number -- Sum of digits -- Sum of(sum of digits)
5.......... 1877........ 9385........ 25............ 7.......... (#11)
5............. 1949........ 9745......... 25............ 7.......... (#11)
5*19*103. 1957........ 9785........ 29............ 11.......... (#9)

***********************************************************
12. If this sum is a prime number, are the sum of the digits of that sum, also a prime number? YES
Prime Factors ------ Number -- Sum of digits -- Sum of(sum of digits)
5.............. 1861........ 9305........ 17............ 8
5.............. 1873........ 9365........ 23............ 5
***********************************************************
MY Guess the Number Answer is 9365

Matt wrote:
Is the number 9365?


Nope. Sorry


Cannot see where in my calculations that 9365 is incorrect *shrug*

Sat Feb 11, 2006 4:37 pm

gemma58 wrote:So far:

Xena got it down to six numbers whereas I got it down to 5 numbers (9705 is divisible by three)
My numbers were:
9305
9365
9385
9745
9785
then these questions were asked and answered:



Afterward, I realized my 6th number was divisible by 3 (I didn't know if one should conisder "0" to be even ... so my list was originally 4 numbers ... ). doh. :)

gemma58 wrote:*******************************************************
9.
Within its prime factors; are any numbers repeated?
(e.g. 5619 = 1873 x 3. 3 is repeated. 3891 = 3 x 1297. No numbers are repeated?) no

Does the number contain a 7? maybe
******************************************************
5*19*103. 1957........ 9785........ 29............ 11


I actually read this question to mean this. For instance, 75 = 3 * 5 * 5 ... the 5 was repeated. So I didn't cross off any of the numbers.

gemma58 wrote:So I asked the following:
******************************************************
11. Is the sum of the individual digits of the number, a prime number? YES

********************************************************

The following numbers are ruled OUT: (reason given by question number)

Prime Factors ------ Number -- Sum of digits -- Sum of(sum of digits)
5.......... 1877........ 9385........ 25............ 7.......... (#11)
5............. 1949........ 9745......... 25............ 7.......... (#11)
5*19*103. 1957........ 9785........ 29............ 11.......... (#9)




With my reading of question #9, this made 9785 still a viable option. Which is why I guess it as a "single guess" several posts back.

gemma58 wrote:MY Guess the Number Answer is 9365

Matt wrote:
Is the number 9365?


Nope. Sorry


Cannot see where in my calculations that 9365 is incorrect *shrug*


This was the other option. I thought it would be right as well. When it was wrong, I was sure my 9785 guess was right.

Sat Feb 11, 2006 8:35 pm

XenaAndGabrielle wrote:
gemma58 wrote:So far:

Xena got it down to six numbers whereas I got it down to 5 numbers (9705 is divisible by three)
My numbers were:
9305
9365
9385
9745
9785
then these questions were asked and answered:



Afterward, I realized my 6th number was divisible by 3 (I didn't know if one should conisder "0" to be even ... so my list was originally 4 numbers ... ). doh. :)

gemma58 wrote:*******************************************************
9.
Within its prime factors; are any numbers repeated?
(e.g. 5619 = 1873 x 3. 3 is repeated. 3891 = 3 x 1297. No numbers are repeated?) no

Does the number contain a 7? maybe
******************************************************
5*19*103. 1957........ 9785........ 29............ 11


I actually read this question to mean this. For instance, 75 = 3 * 5 * 5 ... the 5 was repeated. So I didn't cross off any of the numbers.

gemma58 wrote:So I asked the following:
******************************************************
11. Is the sum of the individual digits of the number, a prime number? YES

********************************************************

The following numbers are ruled OUT: (reason given by question number)

Prime Factors ------ Number -- Sum of digits -- Sum of(sum of digits)
5.......... 1877........ 9385........ 25............ 7.......... (#11)
5............. 1949........ 9745......... 25............ 7.......... (#11)
5*19*103. 1957........ 9785........ 29............ 11.......... (#9)




With my reading of question #9, this made 9785 still a viable option. Which is why I guess it as a "single guess" several posts back.

gemma58 wrote:MY Guess the Number Answer is 9365

Matt wrote:
Is the number 9365?


Nope. Sorry


Cannot see where in my calculations that 9365 is incorrect *shrug*


This was the other option. I thought it would be right as well. When it was wrong, I was sure my 9785 guess was right.


You are correct! Good job, everyone, and especially X&G.
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