Q: What are the prime factors of the number 302,157,275?

 A: 5, 7, 167, 211

Why are those the prime factors of the number 302,157,275?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 302,157,275

302,157,275
Factor Arrows
560,431,455
Factor Arrows
512,086,291
Factor Arrows
71,726,613
Factor Arrows
7246,659
Factor Arrows
735,237
Factor Arrows
167211

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

5, 7, 167, 211

We can check our work by multiplying all of the prime factors together: 5 x 5 x 7 x 7 x 7 x 167 x 211 = 302,157,275

This can also be written as 52 x 73 x 1671 x 2111 = 302,157,275

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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