Q: What are the prime factors of the number 452,021,024?

 A: 2, 7, 13, 17, 23, 397

Why are those the prime factors of the number 452,021,024?

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 452,021,024

452,021,024
Factor Arrows
2226,010,512
Factor Arrows
2113,005,256
Factor Arrows
256,502,628
Factor Arrows
228,251,314
Factor Arrows
214,125,657
Factor Arrows
72,017,951
Factor Arrows
13155,227
Factor Arrows
179,131
Factor Arrows
23397

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, 7, 13, 17, 23, 397

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 13 x 17 x 23 x 397 = 452,021,024

This can also be written as 25 x 71 x 131 x 171 x 231 x 3971 = 452,021,024

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


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