Q: What are the prime factors of the number 20,727,600?

 A: 2, 3, 5, 23, 751

Why are those the prime factors of the number 20,727,600?

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 20,727,600

20,727,600
Factor Arrows
210,363,800
Factor Arrows
25,181,900
Factor Arrows
22,590,950
Factor Arrows
21,295,475
Factor Arrows
3431,825
Factor Arrows
586,365
Factor Arrows
517,273
Factor Arrows
23751

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, 23, 751

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 5 x 23 x 751 = 20,727,600

This can also be written as 24 x 31 x 52 x 231 x 7511 = 20,727,600

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


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