Q: What are the prime factors of the number 424,220,420?

 A: 2, 5, 13, 125509

Why are those the prime factors of the number 424,220,420?

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 424,220,420

424,220,420
Factor Arrows
2212,110,210
Factor Arrows
2106,055,105
Factor Arrows
521,211,021
Factor Arrows
131,631,617
Factor Arrows
13125,509

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, 13, 125509

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 13 x 125,509 = 424,220,420

This can also be written as 22 x 51 x 132 x 125,5091 = 424,220,420

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


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