Q: What are the prime factors of the number 465,808,512?

 A: 2, 3, 13, 23, 4057

Why are those the prime factors of the number 465,808,512?

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 465,808,512

465,808,512
Factor Arrows
2232,904,256
Factor Arrows
2116,452,128
Factor Arrows
258,226,064
Factor Arrows
229,113,032
Factor Arrows
214,556,516
Factor Arrows
27,278,258
Factor Arrows
23,639,129
Factor Arrows
31,213,043
Factor Arrows
1393,311
Factor Arrows
234,057

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, 13, 23, 4057

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 3 x 13 x 23 x 4,057 = 465,808,512

This can also be written as 27 x 31 x 131 x 231 x 4,0571 = 465,808,512

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


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