Q: What are the prime factors of the number 1,189,512?

 A: 2, 3, 5507

Why are those the prime factors of the number 1,189,512?

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 1,189,512

1,189,512
Factor Arrows
2594,756
Factor Arrows
2297,378
Factor Arrows
2148,689
Factor Arrows
349,563
Factor Arrows
316,521
Factor Arrows
35,507

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, 5507

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5,507 = 1,189,512

This can also be written as 23 x 33 x 5,5071 = 1,189,512

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


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