Q: What are the prime factors of the number 213,350,445?

 A: 3, 5, 7, 11, 67, 919

Why are those the prime factors of the number 213,350,445?

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 213,350,445

213,350,445
Factor Arrows
371,116,815
Factor Arrows
323,705,605
Factor Arrows
54,741,121
Factor Arrows
7677,303
Factor Arrows
1161,573
Factor Arrows
67919

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:

3, 5, 7, 11, 67, 919

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 11 x 67 x 919 = 213,350,445

This can also be written as 32 x 51 x 71 x 111 x 671 x 9191 = 213,350,445

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


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