Q: What are the prime factors of the number 66,668,208?

 A: 2, 3, 563, 2467

Why are those the prime factors of the number 66,668,208?

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 66,668,208

66,668,208
Factor Arrows
233,334,104
Factor Arrows
216,667,052
Factor Arrows
28,333,526
Factor Arrows
24,166,763
Factor Arrows
31,388,921
Factor Arrows
5632,467

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, 3, 563, 2467

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 563 x 2,467 = 66,668,208

This can also be written as 24 x 31 x 5631 x 2,4671 = 66,668,208

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


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