Q: What are the prime factors of the number 702,401,240?

 A: 2, 5, 17, 1032943

Why are those the prime factors of the number 702,401,240?

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 702,401,240

702,401,240
Factor Arrows
2351,200,620
Factor Arrows
2175,600,310
Factor Arrows
287,800,155
Factor Arrows
517,560,031
Factor Arrows
171,032,943

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, 1032943

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 17 x 1,032,943 = 702,401,240

This can also be written as 23 x 51 x 171 x 1,032,9431 = 702,401,240

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


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