Q: What are the prime factors of the number 206,560,400?

 A: 2, 5, 19, 27179

Why are those the prime factors of the number 206,560,400?

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 206,560,400

206,560,400
Factor Arrows
2103,280,200
Factor Arrows
251,640,100
Factor Arrows
225,820,050
Factor Arrows
212,910,025
Factor Arrows
52,582,005
Factor Arrows
5516,401
Factor Arrows
1927,179

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, 5, 19, 27179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 19 x 27,179 = 206,560,400

This can also be written as 24 x 52 x 191 x 27,1791 = 206,560,400

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


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