Q: What are the prime factors of the number 56,447,744?

 A: 2, 311, 709

Why are those the prime factors of the number 56,447,744?

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 56,447,744

56,447,744
Factor Arrows
228,223,872
Factor Arrows
214,111,936
Factor Arrows
27,055,968
Factor Arrows
23,527,984
Factor Arrows
21,763,992
Factor Arrows
2881,996
Factor Arrows
2440,998
Factor Arrows
2220,499
Factor Arrows
311709

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, 311, 709

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 311 x 709 = 56,447,744

This can also be written as 28 x 3111 x 7091 = 56,447,744

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


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