Q: What are the prime factors of the number 212,310,306?

 A: 2, 3, 13, 71, 983

Why are those the prime factors of the number 212,310,306?

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 212,310,306

212,310,306
Factor Arrows
2106,155,153
Factor Arrows
335,385,051
Factor Arrows
311,795,017
Factor Arrows
13907,309
Factor Arrows
1369,793
Factor Arrows
71983

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, 13, 71, 983

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 13 x 13 x 71 x 983 = 212,310,306

This can also be written as 21 x 32 x 132 x 711 x 9831 = 212,310,306

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


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