Q: What are the prime factors of the number 252,640,000?

 A: 2, 5, 1579

Why are those the prime factors of the number 252,640,000?

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 252,640,000

252,640,000
Factor Arrows
2126,320,000
Factor Arrows
263,160,000
Factor Arrows
231,580,000
Factor Arrows
215,790,000
Factor Arrows
27,895,000
Factor Arrows
23,947,500
Factor Arrows
21,973,750
Factor Arrows
2986,875
Factor Arrows
5197,375
Factor Arrows
539,475
Factor Arrows
57,895
Factor Arrows
51,579

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, 5, 1579

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 5 x 5 x 5 x 5 x 1,579 = 252,640,000

This can also be written as 28 x 54 x 1,5791 = 252,640,000

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


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