Q: What are the prime factors of the number 445,552,448?

 A: 2, 11, 769, 823

Why are those the prime factors of the number 445,552,448?

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 445,552,448

445,552,448
Factor Arrows
2222,776,224
Factor Arrows
2111,388,112
Factor Arrows
255,694,056
Factor Arrows
227,847,028
Factor Arrows
213,923,514
Factor Arrows
26,961,757
Factor Arrows
11632,887
Factor Arrows
769823

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, 11, 769, 823

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 11 x 769 x 823 = 445,552,448

This can also be written as 26 x 111 x 7691 x 8231 = 445,552,448

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


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