Q: What are the prime factors of the number 210,153,663?

 A: 3, 677, 11497

Why are those the prime factors of the number 210,153,663?

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 210,153,663

210,153,663
Factor Arrows
370,051,221
Factor Arrows
323,350,407
Factor Arrows
37,783,469
Factor Arrows
67711,497

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:

3, 677, 11497

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 677 x 11,497 = 210,153,663

This can also be written as 33 x 6771 x 11,4971 = 210,153,663

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


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