Q: What are the prime factors of the number 71,506,250?

 A: 2, 5, 17, 673

Why are those the prime factors of the number 71,506,250?

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 71,506,250

71,506,250
Factor Arrows
235,753,125
Factor Arrows
57,150,625
Factor Arrows
51,430,125
Factor Arrows
5286,025
Factor Arrows
557,205
Factor Arrows
511,441
Factor Arrows
17673

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, 17, 673

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 5 x 5 x 17 x 673 = 71,506,250

This can also be written as 21 x 55 x 171 x 6731 = 71,506,250

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


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