Q: What are the prime factors of the number 634,628,608?

 A: 2, 1239509

Why are those the prime factors of the number 634,628,608?

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 634,628,608

634,628,608
Factor Arrows
2317,314,304
Factor Arrows
2158,657,152
Factor Arrows
279,328,576
Factor Arrows
239,664,288
Factor Arrows
219,832,144
Factor Arrows
29,916,072
Factor Arrows
24,958,036
Factor Arrows
22,479,018
Factor Arrows
21,239,509

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, 1239509

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 1,239,509 = 634,628,608

This can also be written as 29 x 1,239,5091 = 634,628,608

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


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