Q: What are the prime factors of the number 178,010,100?

 A: 2, 3, 5, 83, 2383

Why are those the prime factors of the number 178,010,100?

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 178,010,100

178,010,100
Factor Arrows
289,005,050
Factor Arrows
244,502,525
Factor Arrows
314,834,175
Factor Arrows
34,944,725
Factor Arrows
5988,945
Factor Arrows
5197,789
Factor Arrows
832,383

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, 83, 2383

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 5 x 83 x 2,383 = 178,010,100

This can also be written as 22 x 32 x 52 x 831 x 2,3831 = 178,010,100

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


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