Q: What are the prime factors of the number 2,430,560?

 A: 2, 5, 11, 1381

Why are those the prime factors of the number 2,430,560?

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 2,430,560

2,430,560
Factor Arrows
21,215,280
Factor Arrows
2607,640
Factor Arrows
2303,820
Factor Arrows
2151,910
Factor Arrows
275,955
Factor Arrows
515,191
Factor Arrows
111,381

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, 11, 1381

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 11 x 1,381 = 2,430,560

This can also be written as 25 x 51 x 111 x 1,3811 = 2,430,560

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


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