Q: What are the prime factors of the number 673,617,200?

 A: 2, 5, 79, 21317

Why are those the prime factors of the number 673,617,200?

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 673,617,200

673,617,200
Factor Arrows
2336,808,600
Factor Arrows
2168,404,300
Factor Arrows
284,202,150
Factor Arrows
242,101,075
Factor Arrows
58,420,215
Factor Arrows
51,684,043
Factor Arrows
7921,317

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, 79, 21317

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 79 x 21,317 = 673,617,200

This can also be written as 24 x 52 x 791 x 21,3171 = 673,617,200

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


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