Q: What are the prime factors of the number 32,387,136?

 A: 2, 3, 37, 47, 97

Why are those the prime factors of the number 32,387,136?

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 32,387,136

32,387,136
Factor Arrows
216,193,568
Factor Arrows
28,096,784
Factor Arrows
24,048,392
Factor Arrows
22,024,196
Factor Arrows
21,012,098
Factor Arrows
2506,049
Factor Arrows
3168,683
Factor Arrows
374,559
Factor Arrows
4797

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, 37, 47, 97

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 37 x 47 x 97 = 32,387,136

This can also be written as 26 x 31 x 371 x 471 x 971 = 32,387,136

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


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