Q: What are the prime factors of the number 213,111,296?

 A: 2, 19, 1153

Why are those the prime factors of the number 213,111,296?

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 213,111,296

213,111,296
Factor Arrows
2106,555,648
Factor Arrows
253,277,824
Factor Arrows
226,638,912
Factor Arrows
213,319,456
Factor Arrows
26,659,728
Factor Arrows
23,329,864
Factor Arrows
21,664,932
Factor Arrows
2832,466
Factor Arrows
2416,233
Factor Arrows
1921,907
Factor Arrows
191,153

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, 19, 1153

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 19 x 19 x 1,153 = 213,111,296

This can also be written as 29 x 192 x 1,1531 = 213,111,296

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


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