Q: What are the prime factors of the number 1,103,360?

 A: 2, 5, 431

Why are those the prime factors of the number 1,103,360?

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 1,103,360

1,103,360
Factor Arrows
2551,680
Factor Arrows
2275,840
Factor Arrows
2137,920
Factor Arrows
268,960
Factor Arrows
234,480
Factor Arrows
217,240
Factor Arrows
28,620
Factor Arrows
24,310
Factor Arrows
22,155
Factor Arrows
5431

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, 431

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 2 x 5 x 431 = 1,103,360

This can also be written as 29 x 51 x 4311 = 1,103,360

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


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