Q: What are the prime factors of the number 206,522,368?

 A: 2, 13, 7757

Why are those the prime factors of the number 206,522,368?

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 206,522,368

206,522,368
Factor Arrows
2103,261,184
Factor Arrows
251,630,592
Factor Arrows
225,815,296
Factor Arrows
212,907,648
Factor Arrows
26,453,824
Factor Arrows
23,226,912
Factor Arrows
21,613,456
Factor Arrows
2806,728
Factor Arrows
2403,364
Factor Arrows
2201,682
Factor Arrows
2100,841
Factor Arrows
137,757

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, 13, 7757

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 2 x 2 x 13 x 7,757 = 206,522,368

This can also be written as 211 x 131 x 7,7571 = 206,522,368

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


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