Q: What are the prime factors of the number 443,704,736?

 A: 2, 31, 347, 1289

Why are those the prime factors of the number 443,704,736?

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 443,704,736

443,704,736
Factor Arrows
2221,852,368
Factor Arrows
2110,926,184
Factor Arrows
255,463,092
Factor Arrows
227,731,546
Factor Arrows
213,865,773
Factor Arrows
31447,283
Factor Arrows
3471,289

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, 31, 347, 1289

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 31 x 347 x 1,289 = 443,704,736

This can also be written as 25 x 311 x 3471 x 1,2891 = 443,704,736

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


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