Q: What are the prime factors of the number 53,688,720?

 A: 2, 3, 5, 17, 13159

Why are those the prime factors of the number 53,688,720?

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 53,688,720

53,688,720
Factor Arrows
226,844,360
Factor Arrows
213,422,180
Factor Arrows
26,711,090
Factor Arrows
23,355,545
Factor Arrows
31,118,515
Factor Arrows
5223,703
Factor Arrows
1713,159

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, 17, 13159

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 17 x 13,159 = 53,688,720

This can also be written as 24 x 31 x 51 x 171 x 13,1591 = 53,688,720

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


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