Q: What are the prime factors of the number 211,782,250?

 A: 2, 5, 847129

Why are those the prime factors of the number 211,782,250?

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 211,782,250

211,782,250
Factor Arrows
2105,891,125
Factor Arrows
521,178,225
Factor Arrows
54,235,645
Factor Arrows
5847,129

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, 847129

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 847,129 = 211,782,250

This can also be written as 21 x 53 x 847,1291 = 211,782,250

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


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