Q: What are the prime factors of the number 213,132,546?

 A: 2, 3, 11, 83, 131

Why are those the prime factors of the number 213,132,546?

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 213,132,546

213,132,546
Factor Arrows
2106,566,273
Factor Arrows
335,522,091
Factor Arrows
311,840,697
Factor Arrows
33,946,899
Factor Arrows
31,315,633
Factor Arrows
11119,603
Factor Arrows
1110,873
Factor Arrows
83131

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, 83, 131

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 11 x 11 x 83 x 131 = 213,132,546

This can also be written as 21 x 34 x 112 x 831 x 1311 = 213,132,546

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


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