Q: What are the prime factors of the number 66,231,008?

 A: 2, 43, 127, 379

Why are those the prime factors of the number 66,231,008?

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 66,231,008

66,231,008
Factor Arrows
233,115,504
Factor Arrows
216,557,752
Factor Arrows
28,278,876
Factor Arrows
24,139,438
Factor Arrows
22,069,719
Factor Arrows
4348,133
Factor Arrows
127379

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, 43, 127, 379

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 43 x 127 x 379 = 66,231,008

This can also be written as 25 x 431 x 1271 x 3791 = 66,231,008

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


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