Q: What are the prime factors of the number 466,405,520?

 A: 2, 5, 7, 43, 2767

Why are those the prime factors of the number 466,405,520?

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 466,405,520

466,405,520
Factor Arrows
2233,202,760
Factor Arrows
2116,601,380
Factor Arrows
258,300,690
Factor Arrows
229,150,345
Factor Arrows
55,830,069
Factor Arrows
7832,867
Factor Arrows
7118,981
Factor Arrows
432,767

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, 7, 43, 2767

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 7 x 43 x 2,767 = 466,405,520

This can also be written as 24 x 51 x 72 x 431 x 2,7671 = 466,405,520

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


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