Q: What are the prime factors of the number 2,331,360?

 A: 2, 3, 5, 1619

Why are those the prime factors of the number 2,331,360?

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 2,331,360

2,331,360
Factor Arrows
21,165,680
Factor Arrows
2582,840
Factor Arrows
2291,420
Factor Arrows
2145,710
Factor Arrows
272,855
Factor Arrows
324,285
Factor Arrows
38,095
Factor Arrows
51,619

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, 1619

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 3 x 5 x 1,619 = 2,331,360

This can also be written as 25 x 32 x 51 x 1,6191 = 2,331,360

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


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