Q: What are the prime factors of the number 83,472?

 A: 2, 3, 37, 47

Why are those the prime factors of the number 83,472?

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 83,472

83,472
Factor Arrows
241,736
Factor Arrows
220,868
Factor Arrows
210,434
Factor Arrows
25,217
Factor Arrows
31,739
Factor Arrows
3747

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

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 37 x 47 = 83,472

This can also be written as 24 x 31 x 371 x 471 = 83,472

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


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