Q: What are the prime factors of the number 28,701,862?

 A: 2, 7, 37, 67, 827

Why are those the prime factors of the number 28,701,862?

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 28,701,862

28,701,862
Factor Arrows
214,350,931
Factor Arrows
72,050,133
Factor Arrows
3755,409
Factor Arrows
67827

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, 37, 67, 827

We can check our work by multiplying all of the prime factors together: 2 x 7 x 37 x 67 x 827 = 28,701,862

This can also be written as 21 x 71 x 371 x 671 x 8271 = 28,701,862

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


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