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Q: Are 21 and 11 prime numbers?

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11 and 107 are the prime numbers.

The prime numbers between 10 and 21 are 11, 13, 17, and 19.

Four. The prime numbers between 10 and 21 are 11, 13, 17, and 19.

The prime numbers from 1 to 21 are 2, 3, 5, 7, 11, 13, 17, and 19.

11 is the only prime number. 21, 52, 57 and 94 are divisible by 3, 2, 3 and 2 respectively, and are therefore not prime numbers.

3, 7 and 11.

The even numbers 52 and 94 can be eliminated right away because the only even prime number is 2. That leaves 11, 21, 57, and 107. 3 x 7 = 21, so it is not prime. 3 x 19 = 57, so it is not prime. 11 and 107 are the prime numbers.

The prime numbers between 2 and 21 are: 2, 3, 5, 7, 11, 13, 17 and 19

there are 3 prime numbers in between 21 and 33... they are 23,29, 31.

Do you mean, "What is the prime factorization of 21?"

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