Q: What are the prime factors of the number 444,234,640?

 A: 2, 5, 113, 157, 313

Why are those the prime factors of the number 444,234,640?

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 444,234,640

444,234,640
Factor Arrows
2222,117,320
Factor Arrows
2111,058,660
Factor Arrows
255,529,330
Factor Arrows
227,764,665
Factor Arrows
55,552,933
Factor Arrows
11349,141
Factor Arrows
157313

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, 113, 157, 313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 113 x 157 x 313 = 444,234,640

This can also be written as 24 x 51 x 1131 x 1571 x 3131 = 444,234,640

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


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