Q: Are 1 and 19 prime or composite?

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A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 19 is prime.

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

A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 19 is prime.

A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 19 is prime.

19 is a prime number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.

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.

160 is a composite no. and 19 is a prime no.

The prime factors of 38 are 2 and 19. Since 1 isn't prime or composite, 1 is not a prime factor of 38. The prime factors of 38 are 19 and 2. Since 1 isn't prime or composite, 1 cannot be a prime factor of 38. 2 and 19

Composite (11 x 19).209 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.

No, 19 is prime. A composite number needs to have 3 or more factors. 19 has only 2 factors, 1 and itself, which makes it prime.

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

Only 63. 0 and 1 are not composite numbers and are not prime numbers (even though 1 used to be). 19 is a prime number.