Q: What are the prime factors of the number 3,180,160?

 A: 2, 5, 4969

Why are those the prime factors of the number 3,180,160?

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 3,180,160

3,180,160
Factor Arrows
21,590,080
Factor Arrows
2795,040
Factor Arrows
2397,520
Factor Arrows
2198,760
Factor Arrows
299,380
Factor Arrows
249,690
Factor Arrows
224,845
Factor Arrows
54,969

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, 5, 4969

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 4,969 = 3,180,160

This can also be written as 27 x 51 x 4,9691 = 3,180,160

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


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