Q: What are the prime factors of the number 722,151,234?

 A: 2, 3, 7, 337, 5669

Why are those the prime factors of the number 722,151,234?

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 722,151,234

722,151,234
Factor Arrows
2361,075,617
Factor Arrows
3120,358,539
Factor Arrows
340,119,513
Factor Arrows
313,373,171
Factor Arrows
71,910,453
Factor Arrows
3375,669

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, 7, 337, 5669

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 337 x 5,669 = 722,151,234

This can also be written as 21 x 33 x 71 x 3371 x 5,6691 = 722,151,234

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


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