Q: What are the prime factors of the number 20,886,960?

 A: 2, 3, 5, 29, 3001

Why are those the prime factors of the number 20,886,960?

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 20,886,960

20,886,960
Factor Arrows
210,443,480
Factor Arrows
25,221,740
Factor Arrows
22,610,870
Factor Arrows
21,305,435
Factor Arrows
3435,145
Factor Arrows
587,029
Factor Arrows
293,001

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, 5, 29, 3001

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 29 x 3,001 = 20,886,960

This can also be written as 24 x 31 x 51 x 291 x 3,0011 = 20,886,960

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


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