Q: What are the prime factors of the number 440,422,120?

 A: 2, 5, 137, 80369

Why are those the prime factors of the number 440,422,120?

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 440,422,120

440,422,120
Factor Arrows
2220,211,060
Factor Arrows
2110,105,530
Factor Arrows
255,052,765
Factor Arrows
511,010,553
Factor Arrows
13780,369

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, 137, 80369

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 137 x 80,369 = 440,422,120

This can also be written as 23 x 51 x 1371 x 80,3691 = 440,422,120

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


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