Q: What are the prime factors of the number 4,346,320?

 A: 2, 5, 11, 449

Why are those the prime factors of the number 4,346,320?

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 4,346,320

4,346,320
Factor Arrows
22,173,160
Factor Arrows
21,086,580
Factor Arrows
2543,290
Factor Arrows
2271,645
Factor Arrows
554,329
Factor Arrows
114,939
Factor Arrows
11449

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, 449

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 11 x 11 x 449 = 4,346,320

This can also be written as 24 x 51 x 112 x 4491 = 4,346,320

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


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