Q: What are the prime factors of the number 712,013,120?

 A: 2, 5, 7, 13, 499

Why are those the prime factors of the number 712,013,120?

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 712,013,120

712,013,120
Factor Arrows
2356,006,560
Factor Arrows
2178,003,280
Factor Arrows
289,001,640
Factor Arrows
244,500,820
Factor Arrows
222,250,410
Factor Arrows
211,125,205
Factor Arrows
52,225,041
Factor Arrows
7317,863
Factor Arrows
745,409
Factor Arrows
76,487
Factor Arrows
13499

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, 5, 7, 13, 499

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 5 x 7 x 7 x 7 x 13 x 499 = 712,013,120

This can also be written as 26 x 51 x 73 x 131 x 4991 = 712,013,120

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


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