Q: What are the prime factors of the number 66,331,335?

 A: 3, 5, 7, 47, 13441

Why are those the prime factors of the number 66,331,335?

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 66,331,335

66,331,335
Factor Arrows
322,110,445
Factor Arrows
54,422,089
Factor Arrows
7631,727
Factor Arrows
4713,441

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, 5, 7, 47, 13441

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 47 x 13,441 = 66,331,335

This can also be written as 31 x 51 x 71 x 471 x 13,4411 = 66,331,335

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


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