Q: What are the prime factors of the number 424,254,160?

 A: 2, 5, 11, 109, 4423

Why are those the prime factors of the number 424,254,160?

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 424,254,160

424,254,160
Factor Arrows
2212,127,080
Factor Arrows
2106,063,540
Factor Arrows
253,031,770
Factor Arrows
226,515,885
Factor Arrows
55,303,177
Factor Arrows
11482,107
Factor Arrows
1094,423

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, 11, 109, 4423

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 11 x 109 x 4,423 = 424,254,160

This can also be written as 24 x 51 x 111 x 1091 x 4,4231 = 424,254,160

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


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