Q: What are the prime factors of the number 20,615,230?

 A: 2, 5, 29, 67, 1061

Why are those the prime factors of the number 20,615,230?

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 20,615,230

20,615,230
Factor Arrows
210,307,615
Factor Arrows
52,061,523
Factor Arrows
2971,087
Factor Arrows
671,061

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, 29, 67, 1061

We can check our work by multiplying all of the prime factors together: 2 x 5 x 29 x 67 x 1,061 = 20,615,230

This can also be written as 21 x 51 x 291 x 671 x 1,0611 = 20,615,230

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


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