Q: What are the prime factors of the number 669,776?

 A: 2, 41, 1021

Why are those the prime factors of the number 669,776?

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 669,776

669,776
Factor Arrows
2334,888
Factor Arrows
2167,444
Factor Arrows
283,722
Factor Arrows
241,861
Factor Arrows
411,021

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, 41, 1021

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 41 x 1,021 = 669,776

This can also be written as 24 x 411 x 1,0211 = 669,776

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


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