Q: What are the prime factors of the number 365,551,170?

 A: 2, 3, 5, 17, 43, 79, 211

Why are those the prime factors of the number 365,551,170?

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 365,551,170

365,551,170
Factor Arrows
2182,775,585
Factor Arrows
360,925,195
Factor Arrows
512,185,039
Factor Arrows
17716,767
Factor Arrows
4316,669
Factor Arrows
79211

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:

2, 3, 5, 17, 43, 79, 211

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 17 x 43 x 79 x 211 = 365,551,170

This can also be written as 21 x 31 x 51 x 171 x 431 x 791 x 2111 = 365,551,170

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


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