Q: What are the prime factors of the number 64,169,980?

 A: 2, 5, 7, 458357

Why are those the prime factors of the number 64,169,980?

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 64,169,980

64,169,980
Factor Arrows
232,084,990
Factor Arrows
216,042,495
Factor Arrows
53,208,499
Factor Arrows
7458,357

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, 7, 458357

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 458,357 = 64,169,980

This can also be written as 22 x 51 x 71 x 458,3571 = 64,169,980

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


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