Q: What are the prime factors of the number 431,432,544?

 A: 2, 3, 19, 59, 211

Why are those the prime factors of the number 431,432,544?

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 431,432,544

431,432,544
Factor Arrows
2215,716,272
Factor Arrows
2107,858,136
Factor Arrows
253,929,068
Factor Arrows
226,964,534
Factor Arrows
213,482,267
Factor Arrows
34,494,089
Factor Arrows
19236,531
Factor Arrows
1912,449
Factor Arrows
59211

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, 3, 19, 59, 211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 19 x 19 x 59 x 211 = 431,432,544

This can also be written as 25 x 31 x 192 x 591 x 2111 = 431,432,544

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


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