Q: What are the prime factors of the number 3,875,664?

 A: 2, 3, 13, 6211

Why are those the prime factors of the number 3,875,664?

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 3,875,664

3,875,664
Factor Arrows
21,937,832
Factor Arrows
2968,916
Factor Arrows
2484,458
Factor Arrows
2242,229
Factor Arrows
380,743
Factor Arrows
136,211

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, 13, 6211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 13 x 6,211 = 3,875,664

This can also be written as 24 x 31 x 131 x 6,2111 = 3,875,664

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


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