Q: What are the prime factors of the number 103,212?

 A: 2, 3, 47, 61

Why are those the prime factors of the number 103,212?

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 103,212

103,212
Factor Arrows
251,606
Factor Arrows
225,803
Factor Arrows
38,601
Factor Arrows
32,867
Factor Arrows
4761

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, 47, 61

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 47 x 61 = 103,212

This can also be written as 22 x 32 x 471 x 611 = 103,212

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


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