Problem 45543. Find the remainder with the factorial of PRIMES?

  • Take a number greater than or equal to 2 and take its primes. e.g. 6 and its primes are 2 3 5
  • calculate the factorial of its prime (nearest less) and calculate the sum from that number down to 1. e.g. 5! = 120 and sum 5 to 1 is 15
  • As mod of the factorial of every number with 2 is zero, check the mod of the sum calculated with 10 e.g. mod of 15 with 10 is 5
  • Divide factorial with the remainder (if possible). e.g. 120/5 = 24
Don't use builtin functions
primes
factorial
mod
Solve

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30.0% Correct | 70.0% Incorrect
Last Solution submitted on Apr 28, 2025

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