Q: What are the prime factors of the number 322,102,500?

 A: 2, 3, 5, 67, 641

Why are those the prime factors of the number 322,102,500?

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 322,102,500

322,102,500
Factor Arrows
2161,051,250
Factor Arrows
280,525,625
Factor Arrows
326,841,875
Factor Arrows
55,368,375
Factor Arrows
51,073,675
Factor Arrows
5214,735
Factor Arrows
542,947
Factor Arrows
67641

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, 67, 641

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 5 x 5 x 67 x 641 = 322,102,500

This can also be written as 22 x 31 x 54 x 671 x 6411 = 322,102,500

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


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