Q: What are the prime factors of the number 66,867,262?

 A: 2, 7, 11, 5639

Why are those the prime factors of the number 66,867,262?

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 66,867,262

66,867,262
Factor Arrows
233,433,631
Factor Arrows
74,776,233
Factor Arrows
7682,319
Factor Arrows
1162,029
Factor Arrows
115,639

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, 7, 11, 5639

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 11 x 11 x 5,639 = 66,867,262

This can also be written as 21 x 72 x 112 x 5,6391 = 66,867,262

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


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