Q: What are the prime factors of the number 4,496,960?

 A: 2, 5, 13, 23, 47

Why are those the prime factors of the number 4,496,960?

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 4,496,960

4,496,960
Factor Arrows
22,248,480
Factor Arrows
21,124,240
Factor Arrows
2562,120
Factor Arrows
2281,060
Factor Arrows
2140,530
Factor Arrows
270,265
Factor Arrows
514,053
Factor Arrows
131,081
Factor Arrows
2347

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, 13, 23, 47

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 5 x 13 x 23 x 47 = 4,496,960

This can also be written as 26 x 51 x 131 x 231 x 471 = 4,496,960

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


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