Q: What are the prime factors of the number 10,015,600?

 A: 2, 5, 7, 73

Why are those the prime factors of the number 10,015,600?

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 10,015,600

10,015,600
Factor Arrows
25,007,800
Factor Arrows
22,503,900
Factor Arrows
21,251,950
Factor Arrows
2625,975
Factor Arrows
5125,195
Factor Arrows
525,039
Factor Arrows
73,577
Factor Arrows
7511
Factor Arrows
773

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, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 7 x 7 x 7 x 73 = 10,015,600

This can also be written as 24 x 52 x 73 x 731 = 10,015,600

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


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