Q: What are the prime factors of the number 211,510,565?

 A: 5, 7, 19, 73, 4357

Why are those the prime factors of the number 211,510,565?

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 211,510,565

211,510,565
Factor Arrows
542,302,113
Factor Arrows
76,043,159
Factor Arrows
19318,061
Factor Arrows
734,357

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, 7, 19, 73, 4357

We can check our work by multiplying all of the prime factors together: 5 x 7 x 19 x 73 x 4,357 = 211,510,565

This can also be written as 51 x 71 x 191 x 731 x 4,3571 = 211,510,565

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


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