It is composite because it has more than two factors
31 is prime.
31 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.
31 is a prime number because it is only divisible by 1 and itself.
31 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.
It is the only even prime number
It is composite because it has more than two factors
56 is a composite number because it has more than 2 factors
It is a prime number because it has only two factors which are itself and one
75 is a composite number because it has more than 2 factors
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. 5 is prime.
Forty three is a prime number because you cannot divide it evenly with another number. Composite numbers are numbers that can be divided evenly. For example, 40 and 42 are composite numbers.
31 is prime.
31 is a prime number
31 is a prime number because it has only two factors which are itself and one
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31 is a prime number because it has only two factors which are itself and one