Follow the rules to eliminate every number from 1-50, except one. Which one will be the last one standing after eliminating the following:
- multiples of 3
- square numbers
- prime numbers
- even numbers
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 6th & 7th rows of the playing board contain the following fourteen numbers:
4 5 11 12 18 20 24 27 30 33 49 56 70 77
Which two numbers, when multiplied by 6, are also represented on the above list?
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