Q: What are the prime factors of the number 424,428,885?

 A: 3, 5, 17, 503, 1103

Why are those the prime factors of the number 424,428,885?

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 424,428,885

424,428,885
Factor Arrows
3141,476,295
Factor Arrows
347,158,765
Factor Arrows
59,431,753
Factor Arrows
17554,809
Factor Arrows
5031,103

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:

3, 5, 17, 503, 1103

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 17 x 503 x 1,103 = 424,428,885

This can also be written as 32 x 51 x 171 x 5031 x 1,1031 = 424,428,885

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


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