Q: What are the prime factors of the number 652,721,616?

 A: 2, 3, 31, 73, 2003

Why are those the prime factors of the number 652,721,616?

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 652,721,616

652,721,616
Factor Arrows
2326,360,808
Factor Arrows
2163,180,404
Factor Arrows
281,590,202
Factor Arrows
240,795,101
Factor Arrows
313,598,367
Factor Arrows
34,532,789
Factor Arrows
31146,219
Factor Arrows
732,003

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, 31, 73, 2003

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 31 x 73 x 2,003 = 652,721,616

This can also be written as 24 x 32 x 311 x 731 x 2,0031 = 652,721,616

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


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