Q: What are the prime factors of the number 5,518,080?

 A: 2, 3, 5, 479

Why are those the prime factors of the number 5,518,080?

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 5,518,080

5,518,080
Factor Arrows
22,759,040
Factor Arrows
21,379,520
Factor Arrows
2689,760
Factor Arrows
2344,880
Factor Arrows
2172,440
Factor Arrows
286,220
Factor Arrows
243,110
Factor Arrows
221,555
Factor Arrows
37,185
Factor Arrows
32,395
Factor Arrows
5479

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, 479

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 2 x 3 x 3 x 5 x 479 = 5,518,080

This can also be written as 28 x 32 x 51 x 4791 = 5,518,080

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


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