Q: What are the prime factors of the number 53,324,320?

 A: 2, 5, 7, 47, 1013

Why are those the prime factors of the number 53,324,320?

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 53,324,320

53,324,320
Factor Arrows
226,662,160
Factor Arrows
213,331,080
Factor Arrows
26,665,540
Factor Arrows
23,332,770
Factor Arrows
21,666,385
Factor Arrows
5333,277
Factor Arrows
747,611
Factor Arrows
471,013

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, 7, 47, 1013

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 7 x 47 x 1,013 = 53,324,320

This can also be written as 25 x 51 x 71 x 471 x 1,0131 = 53,324,320

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


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