Prime numbers. Their only two factors are 1 and themselves.
A prime number has exactly two factors: 1 and itself.
A prime number.
Square numbers have an odd number of factors.
A prime number
a prime number. a prime number is just one and it's self
A number with only two factors - 1 and itself - is known as a prime number.
A number with exactly two factors is a prime number. Some examples are 2, 3, and 11. Note that 1 is not a prime number because it has one factor (1). Also, 0 is not prime because it has infinitely many factors (1, 2, 3, 4, 5, ...).
A prime number because it has only two factors.
Prime numbers have only two factors.
The type of number that only has 2 numbers is a prime number, because a prime number is a number that can only fit 1 and its self fit into it ,for example 3 is a prime number.
!7 is a Prime number because it has only two factors which are itself and one