Q: What are the prime factors of the number 611,016,672?

 A: 2, 3, 7, 129893

Why are those the prime factors of the number 611,016,672?

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 611,016,672

611,016,672
Factor Arrows
2305,508,336
Factor Arrows
2152,754,168
Factor Arrows
276,377,084
Factor Arrows
238,188,542
Factor Arrows
219,094,271
Factor Arrows
36,364,757
Factor Arrows
7909,251
Factor Arrows
7129,893

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, 129893

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 7 x 129,893 = 611,016,672

This can also be written as 25 x 31 x 72 x 129,8931 = 611,016,672

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


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