A Prime number.
A prime number.
A number with more than two factors is composite
A composite number
a prime number
It is a composite number and a number with only two factors is a prime number
A prime number.
A composite number
51 is a composite number because it has more than two factors.
All numbers greater than 1 have at least two factors. That is because the number can always divide by 1 and itself. If a number has only 2 factors, it is called a prime number. Otherwise, it is called a composite number.
If you multiply a number by itself, you can also call it the square of the number, the second power of the number, or the number to the power 2.
The number one only has one factor... 1. Prime numbers have two factors, and composite numbers have more than two factors. One is just... out there.
I think that might be better phrased as a number with two factors. That's a prime number.