PRIME FACTORS OF 90
The prime factors of 90 are 2, 3 and 5.
Factor trees can be used to identify the prime factors of a number. The diagram below shows the factor tree of 90.
Prime factors are the numbers at the endpoints. For 90, these numbers are 2, 3 and 5.
The prime factorization of 90 is 2 × 32 × 5.
90 is a composite number.
A prime factor is a factor that is prime. Prime factors can be identified by checking the endpoints of a factor tree.