Q: What are the prime factors of the number 715,200?

 A: 2, 3, 5, 149

Why are those the prime factors of the number 715,200?

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 715,200

715,200
Factor Arrows
2357,600
Factor Arrows
2178,800
Factor Arrows
289,400
Factor Arrows
244,700
Factor Arrows
222,350
Factor Arrows
211,175
Factor Arrows
33,725
Factor Arrows
5745
Factor Arrows
5149

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, 149

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 5 x 5 x 149 = 715,200

This can also be written as 26 x 31 x 52 x 1491 = 715,200

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


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