Q: What are the prime factors of the number 1,174,176?

 A: 2, 3, 151

Why are those the prime factors of the number 1,174,176?

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 1,174,176

1,174,176
Factor Arrows
2587,088
Factor Arrows
2293,544
Factor Arrows
2146,772
Factor Arrows
273,386
Factor Arrows
236,693
Factor Arrows
312,231
Factor Arrows
34,077
Factor Arrows
31,359
Factor Arrows
3453
Factor Arrows
3151

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, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 151 = 1,174,176

This can also be written as 25 x 35 x 1511 = 1,174,176

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


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