Q: What are the prime factors of the number 56,614,320?

 A: 2, 3, 5, 7, 47, 239

Why are those the prime factors of the number 56,614,320?

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 56,614,320

56,614,320
Factor Arrows
228,307,160
Factor Arrows
214,153,580
Factor Arrows
27,076,790
Factor Arrows
23,538,395
Factor Arrows
31,179,465
Factor Arrows
3393,155
Factor Arrows
578,631
Factor Arrows
711,233
Factor Arrows
47239

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, 5, 7, 47, 239

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 7 x 47 x 239 = 56,614,320

This can also be written as 24 x 32 x 51 x 71 x 471 x 2391 = 56,614,320

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


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