Q: What are the prime factors of the number 32,615,460?

 A: 2, 3, 5, 2237

Why are those the prime factors of the number 32,615,460?

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 32,615,460

32,615,460
Factor Arrows
216,307,730
Factor Arrows
28,153,865
Factor Arrows
32,717,955
Factor Arrows
3905,985
Factor Arrows
3301,995
Factor Arrows
3100,665
Factor Arrows
333,555
Factor Arrows
311,185
Factor Arrows
52,237

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, 2237

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 5 x 2,237 = 32,615,460

This can also be written as 22 x 36 x 51 x 2,2371 = 32,615,460

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


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