Q: What are the prime factors of the number 3,190,560?

 A: 2, 3, 5, 17, 23

Why are those the prime factors of the number 3,190,560?

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 3,190,560

3,190,560
Factor Arrows
21,595,280
Factor Arrows
2797,640
Factor Arrows
2398,820
Factor Arrows
2199,410
Factor Arrows
299,705
Factor Arrows
333,235
Factor Arrows
56,647
Factor Arrows
17391
Factor Arrows
1723

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, 5, 17, 23

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 17 x 17 x 23 = 3,190,560

This can also be written as 25 x 31 x 51 x 172 x 231 = 3,190,560

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


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