Q: What are the prime factors of the number 249,159,020?

 A: 2, 5, 11, 1132541

Why are those the prime factors of the number 249,159,020?

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 249,159,020

249,159,020
Factor Arrows
2124,579,510
Factor Arrows
262,289,755
Factor Arrows
512,457,951
Factor Arrows
111,132,541

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, 11, 1132541

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 1,132,541 = 249,159,020

This can also be written as 22 x 51 x 111 x 1,132,5411 = 249,159,020

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


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