Q: What are the prime factors of the number 211,302,316?

 A: 2, 17, 107, 113, 257

Why are those the prime factors of the number 211,302,316?

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 211,302,316

211,302,316
Factor Arrows
2105,651,158
Factor Arrows
252,825,579
Factor Arrows
173,107,387
Factor Arrows
10729,041
Factor Arrows
113257

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, 17, 107, 113, 257

We can check our work by multiplying all of the prime factors together: 2 x 2 x 17 x 107 x 113 x 257 = 211,302,316

This can also be written as 22 x 171 x 1071 x 1131 x 2571 = 211,302,316

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


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