Q: What are the prime factors of the number 32,678,460?

 A: 2, 3, 5, 71, 2557

Why are those the prime factors of the number 32,678,460?

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 32,678,460

32,678,460
Factor Arrows
216,339,230
Factor Arrows
28,169,615
Factor Arrows
32,723,205
Factor Arrows
3907,735
Factor Arrows
5181,547
Factor Arrows
712,557

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, 71, 2557

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 71 x 2,557 = 32,678,460

This can also be written as 22 x 32 x 51 x 711 x 2,5571 = 32,678,460

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


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