Q: What are the prime factors of the number 213,040,464?

 A: 2, 3, 7, 13, 17, 19, 151

Why are those the prime factors of the number 213,040,464?

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 213,040,464

213,040,464
Factor Arrows
2106,520,232
Factor Arrows
253,260,116
Factor Arrows
226,630,058
Factor Arrows
213,315,029
Factor Arrows
34,438,343
Factor Arrows
7634,049
Factor Arrows
1348,773
Factor Arrows
172,869
Factor Arrows
19151

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, 7, 13, 17, 19, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 13 x 17 x 19 x 151 = 213,040,464

This can also be written as 24 x 31 x 71 x 131 x 171 x 191 x 1511 = 213,040,464

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


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