Q: What are the prime factors of the number 455,343,120?

 A: 2, 3, 5, 59, 397

Why are those the prime factors of the number 455,343,120?

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 455,343,120

455,343,120
Factor Arrows
2227,671,560
Factor Arrows
2113,835,780
Factor Arrows
256,917,890
Factor Arrows
228,458,945
Factor Arrows
39,486,315
Factor Arrows
33,162,105
Factor Arrows
31,054,035
Factor Arrows
3351,345
Factor Arrows
3117,115
Factor Arrows
523,423
Factor Arrows
59397

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, 59, 397

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 5 x 59 x 397 = 455,343,120

This can also be written as 24 x 35 x 51 x 591 x 3971 = 455,343,120

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


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