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# How many different primes appear in the prime factorization of (20 factorial)? (Reminder: The number is the product of the integers

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How many different primes appear in the prime factorization of $$20!$$ (20 factorial)? (Reminder: The number $$n!$$ is the product of the integers from 1 to $$n$$ . For example: $$5!=5\cdot 4\cdot3\cdot2\cdot 1= 120$$

Feb 26, 2021

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halp quickly i need helppppp

Feb 26, 2021
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just find how many primes are from 1 to 20. These are 2, 3, 5, 7, 11, 13, 17, and 19, which is 8 primes

Feb 26, 2021