2 and 5
Chat with our AI personalities
Some factors are prime numbers.
Prime factors are factors that are also prime numbers.
If the numbers are prime numbers, the prime factor of each number is the number itself. If the numbers are not prime numbers, the prime factors of each number are each of the prime numbers by which the number in question can be divided without a remainder.
Prime numbers have two factors. Prime squares have three factors. Square numbers have an odd number of factors but that number varies.
Prime numbers have two factors. 2, 3 and 5 are prime numbers.