Q: What are the prime factors of the number 408,170,334?

 A: 2, 3, 11, 13, 41, 283

Why are those the prime factors of the number 408,170,334?

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 408,170,334

408,170,334
Factor Arrows
2204,085,167
Factor Arrows
368,028,389
Factor Arrows
116,184,399
Factor Arrows
13475,723
Factor Arrows
4111,603
Factor Arrows
41283

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, 11, 13, 41, 283

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 13 x 41 x 41 x 283 = 408,170,334

This can also be written as 21 x 31 x 111 x 131 x 412 x 2831 = 408,170,334

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


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