Read the following facts and work out my numerical value:
- I am a single digit number
- If you add 6 to me, I become a 2-digit number
- I am an odd number but not a square number
- I am a factor of 30
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.
The 3rd & 6th rows of the playing board contain the following fourteen numbers:
5 12 13 18 20 25 33 36 42 45 49 56 66 80
What is the difference between the highest prime number and the highest odd number?
. . . can be found when clicking this.