Q: What are the prime factors of the number 3,489,772?

 A: 2, 11, 13, 6101

Why are those the prime factors of the number 3,489,772?

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 3,489,772

3,489,772
Factor Arrows
21,744,886
Factor Arrows
2872,443
Factor Arrows
1179,313
Factor Arrows
136,101

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, 11, 13, 6101

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 13 x 6,101 = 3,489,772

This can also be written as 22 x 111 x 131 x 6,1011 = 3,489,772

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


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