Q: What are the prime factors of the number 3,688,425?

 A: 3, 5, 13, 97

Why are those the prime factors of the number 3,688,425?

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 3,688,425

3,688,425
Factor Arrows
31,229,475
Factor Arrows
3409,825
Factor Arrows
581,965
Factor Arrows
516,393
Factor Arrows
131,261
Factor Arrows
1397

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, 13, 97

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 13 x 13 x 97 = 3,688,425

This can also be written as 32 x 52 x 132 x 971 = 3,688,425

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


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