Q: What are the prime factors of the number 212,440,165?

 A: 5, 7, 53, 71, 1613

Why are those the prime factors of the number 212,440,165?

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 212,440,165

212,440,165
Factor Arrows
542,488,033
Factor Arrows
76,069,719
Factor Arrows
53114,523
Factor Arrows
711,613

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:

5, 7, 53, 71, 1613

We can check our work by multiplying all of the prime factors together: 5 x 7 x 53 x 71 x 1,613 = 212,440,165

This can also be written as 51 x 71 x 531 x 711 x 1,6131 = 212,440,165

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


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