Q: What are the prime factors of the number 66,444,309?

 A: 3, 23, 199, 1613

Why are those the prime factors of the number 66,444,309?

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 66,444,309

66,444,309
Factor Arrows
322,148,103
Factor Arrows
37,382,701
Factor Arrows
23320,987
Factor Arrows
1991,613

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:

3, 23, 199, 1613

We can check our work by multiplying all of the prime factors together: 3 x 3 x 23 x 199 x 1,613 = 66,444,309

This can also be written as 32 x 231 x 1991 x 1,6131 = 66,444,309

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


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