Q: What are the prime factors of the number 211,648?

 A: 2, 3307

Why are those the prime factors of the number 211,648?

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 211,648

211,648
Factor Arrows
2105,824
Factor Arrows
252,912
Factor Arrows
226,456
Factor Arrows
213,228
Factor Arrows
26,614
Factor Arrows
23,307

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, 3307

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 3,307 = 211,648

This can also be written as 26 x 3,3071 = 211,648

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


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