Q: What are the prime factors of the number 440,033,320?

 A: 2, 5, 41, 157, 1709

Why are those the prime factors of the number 440,033,320?

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 440,033,320

440,033,320
Factor Arrows
2220,016,660
Factor Arrows
2110,008,330
Factor Arrows
255,004,165
Factor Arrows
511,000,833
Factor Arrows
41268,313
Factor Arrows
1571,709

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, 41, 157, 1709

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 41 x 157 x 1,709 = 440,033,320

This can also be written as 23 x 51 x 411 x 1571 x 1,7091 = 440,033,320

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


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