Factors of 31

A Factor Pair of number 31 is a combination of two factors which can be multiplied together to equal 31.

List of all possible Factor Pairs of 31:

Divide 31 by every whole number from 1 up to 5. Each division without a remainder gives a factor and its pair. There is no point going further: 6 × 6 = 36 is already greater than 31, so any larger divisor would pair with a smaller one you have already checked.

31 is a prime number: nothing divides it evenly except 1 and itself. That is the whole reason it has exactly two factors — a prime has no others, however large it is.

Step-by-step factorization: Prime factors of 31.