Q: What are the prime factors of the number 210,201,200?

 A: 2, 5, 11, 43, 101

Why are those the prime factors of the number 210,201,200?

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 210,201,200

210,201,200
Factor Arrows
2105,100,600
Factor Arrows
252,550,300
Factor Arrows
226,275,150
Factor Arrows
213,137,575
Factor Arrows
52,627,515
Factor Arrows
5525,503
Factor Arrows
1147,773
Factor Arrows
114,343
Factor Arrows
43101

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, 11, 43, 101

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 11 x 11 x 43 x 101 = 210,201,200

This can also be written as 24 x 52 x 112 x 431 x 1011 = 210,201,200

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


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