Q: What are all the prime numbers less then 20?

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All the prime numbers less than 20 are 2,3,5,7,11,13,17,19

A prime number can be less than 20, but it is not a requirement that the number has to be under 20 to be considered prime. Here is a list of all the prime numbers under 20: 2, 3, 5, 7, 11, 13, 17, and 19 .

23 and 29 are the two prime numbers greater than 20 but less than 30.

The prime factors of 20 are 2x2x5.

The set of prime numbers less than 20 = {2, 3, 5, 7, 11, 13, 17,19}

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All the prime numbers less than 20 are 2,3,5,7,11,13,17,19

2,3,5,7,11,13,17,19

A prime number can be less than 20, but it is not a requirement that the number has to be under 20 to be considered prime. Here is a list of all the prime numbers under 20: 2, 3, 5, 7, 11, 13, 17, and 19 .

The answer is 52.

7

23 and 29 are the two prime numbers greater than 20 but less than 30.

The numbers 23 and 29 are prime.

The prime factors of 20 are 2x2x5.

The set of prime numbers less than 20 = {2, 3, 5, 7, 11, 13, 17,19}

2,3,5,7,11,13,17,19

23 29 31 37.

Everything up to and including 20.