Q: What are the prime factors of the number 1,100,160?

 A: 2, 3, 5, 191

Why are those the prime factors of the number 1,100,160?

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 1,100,160

1,100,160
Factor Arrows
2550,080
Factor Arrows
2275,040
Factor Arrows
2137,520
Factor Arrows
268,760
Factor Arrows
234,380
Factor Arrows
217,190
Factor Arrows
28,595
Factor Arrows
32,865
Factor Arrows
3955
Factor Arrows
5191

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, 191

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 3 x 3 x 5 x 191 = 1,100,160

This can also be written as 27 x 32 x 51 x 1911 = 1,100,160

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


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