Q: What are the prime factors of the number 255,160,000?

 A: 2, 5, 6379

Why are those the prime factors of the number 255,160,000?

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 255,160,000

255,160,000
Factor Arrows
2127,580,000
Factor Arrows
263,790,000
Factor Arrows
231,895,000
Factor Arrows
215,947,500
Factor Arrows
27,973,750
Factor Arrows
23,986,875
Factor Arrows
5797,375
Factor Arrows
5159,475
Factor Arrows
531,895
Factor Arrows
56,379

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, 6379

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 5 x 5 x 5 x 5 x 6,379 = 255,160,000

This can also be written as 26 x 54 x 6,3791 = 255,160,000

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


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