Today’s Challenge
From the numbers 1 to 20 inclusive, find the only one that remains when you eliminate all square numbers, multiples of 6, factors of 40 and odd numbers.
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The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from 2 up to 84.
The 1st & 6th rows contain the following fourteen numbers:
2 5 9 12 14 15 18 20 22 33 40 49 56 72
How many square numbers are present?
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Answers
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