Q: What are the prime factors of the number 10,420,160?

 A: 2, 5, 32563

Why are those the prime factors of the number 10,420,160?

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 10,420,160

10,420,160
Factor Arrows
25,210,080
Factor Arrows
22,605,040
Factor Arrows
21,302,520
Factor Arrows
2651,260
Factor Arrows
2325,630
Factor Arrows
2162,815
Factor Arrows
532,563

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, 32563

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 32,563 = 10,420,160

This can also be written as 26 x 51 x 32,5631 = 10,420,160

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


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