PRIME FACTORS OF 42
The prime factors of 42 are 2, 3 and 7.
Factor trees can be used to identify the prime factors of a number. The diagram below shows the factor tree of 42.
Prime factors are the numbers at the endpoints. For 42, these numbers are 2, 3 and 7.
The prime factorization of 42 is 2 × 3 × 7.
42 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.