Q: What are the prime factors of the number 211,507,560?

 A: 2, 3, 5, 11, 53411

Why are those the prime factors of the number 211,507,560?

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 211,507,560

211,507,560
Factor Arrows
2105,753,780
Factor Arrows
252,876,890
Factor Arrows
226,438,445
Factor Arrows
38,812,815
Factor Arrows
32,937,605
Factor Arrows
5587,521
Factor Arrows
1153,411

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, 3, 5, 11, 53411

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 11 x 53,411 = 211,507,560

This can also be written as 23 x 32 x 51 x 111 x 53,4111 = 211,507,560

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


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