Q: What are the prime factors of the number 500,222,448?

 A: 2, 3, 11, 31, 61, 167

Why are those the prime factors of the number 500,222,448?

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 500,222,448

500,222,448
Factor Arrows
2250,111,224
Factor Arrows
2125,055,612
Factor Arrows
262,527,806
Factor Arrows
231,263,903
Factor Arrows
310,421,301
Factor Arrows
33,473,767
Factor Arrows
11315,797
Factor Arrows
3110,187
Factor Arrows
61167

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, 11, 31, 61, 167

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 11 x 31 x 61 x 167 = 500,222,448

This can also be written as 24 x 32 x 111 x 311 x 611 x 1671 = 500,222,448

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


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