Q: What are the prime factors of the number 1,183,360?

 A: 2, 5, 43

Why are those the prime factors of the number 1,183,360?

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 1,183,360

1,183,360
Factor Arrows
2591,680
Factor Arrows
2295,840
Factor Arrows
2147,920
Factor Arrows
273,960
Factor Arrows
236,980
Factor Arrows
218,490
Factor Arrows
29,245
Factor Arrows
51,849
Factor Arrows
4343

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, 43

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 5 x 43 x 43 = 1,183,360

This can also be written as 27 x 51 x 432 = 1,183,360

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


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