Q: What are the prime factors of the number 210,322,332?

 A: 2, 3, 11, 79, 83

Why are those the prime factors of the number 210,322,332?

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 210,322,332

210,322,332
Factor Arrows
2105,161,166
Factor Arrows
252,580,583
Factor Arrows
317,526,861
Factor Arrows
35,842,287
Factor Arrows
31,947,429
Factor Arrows
3649,143
Factor Arrows
3216,381
Factor Arrows
372,127
Factor Arrows
116,557
Factor Arrows
7983

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, 11, 79, 83

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 11 x 79 x 83 = 210,322,332

This can also be written as 22 x 36 x 111 x 791 x 831 = 210,322,332

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


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