Q: What are the prime factors of the number 512,448?

 A: 2, 3, 17, 157

Why are those the prime factors of the number 512,448?

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 512,448

512,448
Factor Arrows
2256,224
Factor Arrows
2128,112
Factor Arrows
264,056
Factor Arrows
232,028
Factor Arrows
216,014
Factor Arrows
28,007
Factor Arrows
32,669
Factor Arrows
17157

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, 17, 157

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 3 x 17 x 157 = 512,448

This can also be written as 26 x 31 x 171 x 1571 = 512,448

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


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