Q: What are the prime factors of the number 36,156,720?

 A: 2, 3, 5, 79, 1907

Why are those the prime factors of the number 36,156,720?

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 36,156,720

36,156,720
Factor Arrows
218,078,360
Factor Arrows
29,039,180
Factor Arrows
24,519,590
Factor Arrows
22,259,795
Factor Arrows
3753,265
Factor Arrows
5150,653
Factor Arrows
791,907

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, 79, 1907

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 79 x 1,907 = 36,156,720

This can also be written as 24 x 31 x 51 x 791 x 1,9071 = 36,156,720

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


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