Q: What are the prime factors of the number 1,179,040?

 A: 2, 5, 7369

Why are those the prime factors of the number 1,179,040?

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 1,179,040

1,179,040
Factor Arrows
2589,520
Factor Arrows
2294,760
Factor Arrows
2147,380
Factor Arrows
273,690
Factor Arrows
236,845
Factor Arrows
57,369

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, 7369

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 7,369 = 1,179,040

This can also be written as 25 x 51 x 7,3691 = 1,179,040

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


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