Q: What are the prime factors of the number 354,064,185?

 A: 3, 5, 17, 23, 20123

Why are those the prime factors of the number 354,064,185?

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 354,064,185

354,064,185
Factor Arrows
3118,021,395
Factor Arrows
339,340,465
Factor Arrows
57,868,093
Factor Arrows
17462,829
Factor Arrows
2320,123

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:

3, 5, 17, 23, 20123

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 17 x 23 x 20,123 = 354,064,185

This can also be written as 32 x 51 x 171 x 231 x 20,1231 = 354,064,185

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


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