Q: What are the prime factors of the number 71,688,232?

 A: 2, 7, 11, 29, 4013

Why are those the prime factors of the number 71,688,232?

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 71,688,232

71,688,232
Factor Arrows
235,844,116
Factor Arrows
217,922,058
Factor Arrows
28,961,029
Factor Arrows
71,280,147
Factor Arrows
11116,377
Factor Arrows
294,013

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, 11, 29, 4013

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 11 x 29 x 4,013 = 71,688,232

This can also be written as 23 x 71 x 111 x 291 x 4,0131 = 71,688,232

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


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