Q: What are the prime factors of the number 213,331,552?

 A: 2, 7, 127, 7499

Why are those the prime factors of the number 213,331,552?

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 213,331,552

213,331,552
Factor Arrows
2106,665,776
Factor Arrows
253,332,888
Factor Arrows
226,666,444
Factor Arrows
213,333,222
Factor Arrows
26,666,611
Factor Arrows
7952,373
Factor Arrows
1277,499

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, 7, 127, 7499

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 127 x 7,499 = 213,331,552

This can also be written as 25 x 71 x 1271 x 7,4991 = 213,331,552

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


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