Q: What are the prime factors of the number 211,440,515?

 A: 5, 11, 13, 113, 2617

Why are those the prime factors of the number 211,440,515?

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 211,440,515

211,440,515
Factor Arrows
542,288,103
Factor Arrows
113,844,373
Factor Arrows
13295,721
Factor Arrows
1132,617

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:

5, 11, 13, 113, 2617

We can check our work by multiplying all of the prime factors together: 5 x 11 x 13 x 113 x 2,617 = 211,440,515

This can also be written as 51 x 111 x 131 x 1131 x 2,6171 = 211,440,515

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


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