Q: What are the prime factors of the number 84,437,744?

 A: 2, 71, 239, 311

Why are those the prime factors of the number 84,437,744?

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 84,437,744

84,437,744
Factor Arrows
242,218,872
Factor Arrows
221,109,436
Factor Arrows
210,554,718
Factor Arrows
25,277,359
Factor Arrows
7174,329
Factor Arrows
239311

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, 71, 239, 311

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 71 x 239 x 311 = 84,437,744

This can also be written as 24 x 711 x 2391 x 3111 = 84,437,744

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


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