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Q: Which number is a composite 231517 or 19?

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No, 19 is a prime number because it can only be multiplied by 2 factors which are 1 and 19. A composite number needs 3 factors.

19 and 23 are prime numbers whereas 21 is a composite number

133 is composite. Its factors are 1 7 19, and 133.

Composite, 2223= 3*3*13*19

No, they are three numbers, not one. 21 is composite.

Related questions

19 is prime.

No, 19 is a prime number because it can only be multiplied by 2 factors which are 1 and 19. A composite number needs 3 factors.

It is divisible by 19, so it is composite.

209 is a composite of 11 and 19

19 is a prime number.

21 is composite.

38 is a composite number

19 is a prime number

15 is composite number 17, 19 and 23 are prime numbers.

19 is prime the only numebr that is neither prime or composite is 1

19 x 9 = 171 so it is a composite number

Prime

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