Q: What are the prime factors of the number 54,399,680?

 A: 2, 5, 47, 3617

Why are those the prime factors of the number 54,399,680?

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 54,399,680

54,399,680
Factor Arrows
227,199,840
Factor Arrows
213,599,920
Factor Arrows
26,799,960
Factor Arrows
23,399,980
Factor Arrows
21,699,990
Factor Arrows
2849,995
Factor Arrows
5169,999
Factor Arrows
473,617

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, 47, 3617

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 5 x 47 x 3,617 = 54,399,680

This can also be written as 26 x 51 x 471 x 3,6171 = 54,399,680

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


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