Q: What are the prime factors of the number 66,354,260?

 A: 2, 5, 7, 31, 15289

Why are those the prime factors of the number 66,354,260?

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 66,354,260

66,354,260
Factor Arrows
233,177,130
Factor Arrows
216,588,565
Factor Arrows
53,317,713
Factor Arrows
7473,959
Factor Arrows
3115,289

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, 31, 15289

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 31 x 15,289 = 66,354,260

This can also be written as 22 x 51 x 71 x 311 x 15,2891 = 66,354,260

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


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