Q: What are the prime factors of the number 20,233,152?

 A: 2, 3, 1301

Why are those the prime factors of the number 20,233,152?

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 20,233,152

20,233,152
Factor Arrows
210,116,576
Factor Arrows
25,058,288
Factor Arrows
22,529,144
Factor Arrows
21,264,572
Factor Arrows
2632,286
Factor Arrows
2316,143
Factor Arrows
3105,381
Factor Arrows
335,127
Factor Arrows
311,709
Factor Arrows
33,903
Factor Arrows
31,301

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, 1301

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 3 x 3 x 3 x 3 x 3 x 1,301 = 20,233,152

This can also be written as 26 x 35 x 1,3011 = 20,233,152

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


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