Q: What are the prime factors of the number 20,162,214?

 A: 2, 3, 23, 31, 1571

Why are those the prime factors of the number 20,162,214?

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 20,162,214

20,162,214
Factor Arrows
210,081,107
Factor Arrows
33,360,369
Factor Arrows
31,120,123
Factor Arrows
2348,701
Factor Arrows
311,571

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, 3, 23, 31, 1571

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 23 x 31 x 1,571 = 20,162,214

This can also be written as 21 x 32 x 231 x 311 x 1,5711 = 20,162,214

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


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