PRIME FACTORS OF 45
The prime factors of 45 are 3 and 5.
Factor trees can be used to identify the prime factors of a number. The diagram below shows the factor tree of 45.
Prime factors are the numbers at the endpoints. For 45, these numbers are 3 and 5.
The prime factorization of 45 is 32 × 5.
45 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.