Q: What are the prime factors of the number 10,989,600?

 A: 2, 3, 5, 19, 241

Why are those the prime factors of the number 10,989,600?

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 10,989,600

10,989,600
Factor Arrows
25,494,800
Factor Arrows
22,747,400
Factor Arrows
21,373,700
Factor Arrows
2686,850
Factor Arrows
2343,425
Factor Arrows
3114,475
Factor Arrows
522,895
Factor Arrows
54,579
Factor Arrows
19241

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, 19, 241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 5 x 19 x 241 = 10,989,600

This can also be written as 25 x 31 x 52 x 191 x 2411 = 10,989,600

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


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