Q: What are the prime factors of the number 176,661,250?

 A: 2, 5, 31, 47, 97

Why are those the prime factors of the number 176,661,250?

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 176,661,250

176,661,250
Factor Arrows
288,330,625
Factor Arrows
517,666,125
Factor Arrows
53,533,225
Factor Arrows
5706,645
Factor Arrows
5141,329
Factor Arrows
314,559
Factor Arrows
4797

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, 31, 47, 97

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 5 x 31 x 47 x 97 = 176,661,250

This can also be written as 21 x 54 x 311 x 471 x 971 = 176,661,250

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


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