Q: What are the prime factors of the number 71,525,216?

 A: 2, 7, 23, 13883

Why are those the prime factors of the number 71,525,216?

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 71,525,216

71,525,216
Factor Arrows
235,762,608
Factor Arrows
217,881,304
Factor Arrows
28,940,652
Factor Arrows
24,470,326
Factor Arrows
22,235,163
Factor Arrows
7319,309
Factor Arrows
2313,883

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, 7, 23, 13883

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 23 x 13,883 = 71,525,216

This can also be written as 25 x 71 x 231 x 13,8831 = 71,525,216

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


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