Q: What are the prime factors of the number 220,239,296?

 A: 2, 109, 131, 241

Why are those the prime factors of the number 220,239,296?

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 220,239,296

220,239,296
Factor Arrows
2110,119,648
Factor Arrows
255,059,824
Factor Arrows
227,529,912
Factor Arrows
213,764,956
Factor Arrows
26,882,478
Factor Arrows
23,441,239
Factor Arrows
10931,571
Factor Arrows
131241

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, 109, 131, 241

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 109 x 131 x 241 = 220,239,296

This can also be written as 26 x 1091 x 1311 x 2411 = 220,239,296

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


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