so good solutions
Back to basics 8 - Matrix Diagonals
Back to basics 11 - Max Integer
Back to basics 26 - Keywords
Divisible by 10
Is this is a Tic Tac Toe X Win?
Large Sum (inspired by Project Euler 13)
Sphenic number sequence
Divisible by 7
Divisible by 16
Mersenne Primes vs. All Primes
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