Chris, I wonder how you keep coming with such new interesting problems!
I'm glad you like them!
Return 'on' or 'off'
Replace Nonzero Numbers with 1
Iccanobif numbers 1
Label primes with the Erdos-Selfridge classification
Create a sequence of primes p such that p > n π(p)
Pick the die most likely to win
Find the smallest integer m such that n divides m!
Determine whether a number is a prime self number
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