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19 is a Prime number. Its only factors are 1 and 19.
21 is a composite number. Its factors are 1, 3, 7, and 21.
23 is a prime number. Its only factors are 1 and 23.
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Earn +20 ptsQ: Is 23 21 19 prime or composite?
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Is 19 21 or 23 composite?
21 is composite. 19 and 23 are prime.
Is 15 17 19 21 23 25 27 29 and 31 prime or composite?
17, 19, 23, 29 and 31 are prime. 15, 21, 25 and 27 are composite..
Is the numbers 19 21 and 23 a composite number?
No, the numbers 19, 21, and 23 are not composite numbers. A composite number is a positive integer greater than 1 that has more than two distinct positive divisors. In the case of these numbers, 19 and 23 are prime numbers because they are only divisible by 1 and themselves, while 21 is a composite number because it has divisors other than 1 and itself (3 and 7).
Which one is a prime number 19 21 or 23?
19 and 23 are prime.
What is a composite number 21 55 77 93 23?
21, 55, 77, and 93 are composite numbers. 23 is a prime.
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