Q: What are the prime factors of the number 213,477,605?

 A: 5, 11, 23, 37, 4561

Why are those the prime factors of the number 213,477,605?

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 213,477,605

213,477,605
Factor Arrows
542,695,521
Factor Arrows
113,881,411
Factor Arrows
23168,757
Factor Arrows
374,561

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, 23, 37, 4561

We can check our work by multiplying all of the prime factors together: 5 x 11 x 23 x 37 x 4,561 = 213,477,605

This can also be written as 51 x 111 x 231 x 371 x 4,5611 = 213,477,605

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


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