Q: What are the prime factors of the number 71,231,700?

 A: 2, 3, 5, 17, 13967

Why are those the prime factors of the number 71,231,700?

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 71,231,700

71,231,700
Factor Arrows
235,615,850
Factor Arrows
217,807,925
Factor Arrows
35,935,975
Factor Arrows
51,187,195
Factor Arrows
5237,439
Factor Arrows
1713,967

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, 17, 13967

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 17 x 13,967 = 71,231,700

This can also be written as 22 x 31 x 52 x 171 x 13,9671 = 71,231,700

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


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