Posted by smiley face on Wednesday, November 16, 2011 at 9:53pm.
That requires a lot of thinking. Your first digit can't be a 5 because if you double that, then you get a 10, and that will leave you with five digits. It can't be a 1 either because if you double that, then you are left with 2, and it says that your thousands digit has to be an odd number less than 6. Very tricky, hopefully you'll be able to come up with more. Sorry I tried, but couldn't :P
And even 7 cannot play a role here, because it has to be less than 6, and it's not a perfect square, its a prime number. Can't place 9 at the end either because three goes into it thrice, not twice :P
Related Questions
Math - Iam a 5digit number my tens digit is the sum of my hundreds digits and ...
math - Mrs. Rossi wrote the following clus for a mystery 4-digit number. .The ...
4th grade math - Find the mystery number. It is a 4 digit odd number. All the ...
math - find the mystery number, it is a 4 digit odd number, all the digits are ...
Math - i am a 4 digit number between 3000 and 4000.My ones digit is twice my ...
4th grade math - I'm a 4 digit number with no 2 digits the same. My ones ...
Math - The mystery number's tens digit is less than the ones digit. The tens...
Math - i am a four digit number. all of my digits are different. my first digit ...
A fun one-math - i am a four -digit number with no two digits the same. my ones...
math - *The number has 8 digits, none of the digits are the same. *It is evenly ...
For Further Reading
