Q: What are the prime factors of the number 20,532,224?

 A: 2, 20051

Why are those the prime factors of the number 20,532,224?

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 20,532,224

20,532,224
Factor Arrows
210,266,112
Factor Arrows
25,133,056
Factor Arrows
22,566,528
Factor Arrows
21,283,264
Factor Arrows
2641,632
Factor Arrows
2320,816
Factor Arrows
2160,408
Factor Arrows
280,204
Factor Arrows
240,102
Factor Arrows
220,051

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, 20051

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 2 x 2 x 2 x 2 x 20,051 = 20,532,224

This can also be written as 210 x 20,0511 = 20,532,224

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


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