A Prime number.
A prime number has exactly two factors: 1 and itself.
A prime number.
A composite number
A prime number
Prime numbers. Their only two factors are 1 and themselves.
A prime number because it has only two factors.
A number with only two factors - 1 and itself - is known as a prime number.
!7 is a Prime number because it has only two factors which are itself and one
its 1 2 5 9 8 9 6 59 5 6 A prime number has only two factors.
It is a composite number because it has more than two factors
163 is a prime number because it has only two factors which are itself and one
23 is a Prime number because it has only two factors which are itself and one.