Q: What are the prime factors of the number 20,653,524?

 A: 2, 3, 211, 2719

Why are those the prime factors of the number 20,653,524?

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 20,653,524

20,653,524
Factor Arrows
210,326,762
Factor Arrows
25,163,381
Factor Arrows
31,721,127
Factor Arrows
3573,709
Factor Arrows
2112,719

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, 211, 2719

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 211 x 2,719 = 20,653,524

This can also be written as 22 x 32 x 2111 x 2,7191 = 20,653,524

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


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