Q: What are the prime factors of the number 75,006,720?

 A: 2, 3, 5, 17, 383

Why are those the prime factors of the number 75,006,720?

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 75,006,720

75,006,720
Factor Arrows
237,503,360
Factor Arrows
218,751,680
Factor Arrows
29,375,840
Factor Arrows
24,687,920
Factor Arrows
22,343,960
Factor Arrows
21,171,980
Factor Arrows
2585,990
Factor Arrows
2292,995
Factor Arrows
397,665
Factor Arrows
332,555
Factor Arrows
56,511
Factor Arrows
17383

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, 383

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 3 x 3 x 5 x 17 x 383 = 75,006,720

This can also be written as 28 x 32 x 51 x 171 x 3831 = 75,006,720

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


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