Q: What are the prime factors of the number 23,420,544?

 A: 2, 3, 7, 8713

Why are those the prime factors of the number 23,420,544?

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 23,420,544

23,420,544
Factor Arrows
211,710,272
Factor Arrows
25,855,136
Factor Arrows
22,927,568
Factor Arrows
21,463,784
Factor Arrows
2731,892
Factor Arrows
2365,946
Factor Arrows
2182,973
Factor Arrows
360,991
Factor Arrows
78,713

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, 7, 8713

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 3 x 7 x 8,713 = 23,420,544

This can also be written as 27 x 31 x 71 x 8,7131 = 23,420,544

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


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