Since the only factors of 19 are 1 and 19, it is a prime number.
A Prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors.
3 x 3 = 9 (Not a prime ; Composite) 1 x 19 = 19 ( Prime) 3 x 7 = 21 (Note a prime: Composite) 5 x 5 = 25 (Not a prime ; Composite).
7654321 is a multiple of 19.
13 and 19 are prime. 33 and 45 are composite.
no- 19 is prime which means it has no proper divisors.
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.
160 is a composite no. and 19 is a prime no.
19 is prime, 1 is neither prime nor composite.
One is prime, the other two are composite.
19 is a prime number
19 is prime the only numebr that is neither prime or composite is 1
19 is prime.
It is a prime.
Is 19 a composite or prime factor
3 x 3 = 9 (Not a prime ; Composite) 1 x 19 = 19 ( Prime) 3 x 7 = 21 (Note a prime: Composite) 5 x 5 = 25 (Not a prime ; Composite).
21 is composite. 19 and 23 are 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.