Q: What are the prime factors of the number 210,010,720?

 A: 2, 5, 1312567

Why are those the prime factors of the number 210,010,720?

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 210,010,720

210,010,720
Factor Arrows
2105,005,360
Factor Arrows
252,502,680
Factor Arrows
226,251,340
Factor Arrows
213,125,670
Factor Arrows
26,562,835
Factor Arrows
51,312,567

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, 1312567

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 1,312,567 = 210,010,720

This can also be written as 25 x 51 x 1,312,5671 = 210,010,720

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


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