Q: What are the prime factors of the number 361,442,624?

 A: 2, 19, 131, 2269

Why are those the prime factors of the number 361,442,624?

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 361,442,624

361,442,624
Factor Arrows
2180,721,312
Factor Arrows
290,360,656
Factor Arrows
245,180,328
Factor Arrows
222,590,164
Factor Arrows
211,295,082
Factor Arrows
25,647,541
Factor Arrows
19297,239
Factor Arrows
1312,269

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, 19, 131, 2269

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 19 x 131 x 2,269 = 361,442,624

This can also be written as 26 x 191 x 1311 x 2,2691 = 361,442,624

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


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