Q: What are the prime factors of the number 36,911,920?

 A: 2, 5, 47, 9817

Why are those the prime factors of the number 36,911,920?

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 36,911,920

36,911,920
Factor Arrows
218,455,960
Factor Arrows
29,227,980
Factor Arrows
24,613,990
Factor Arrows
22,306,995
Factor Arrows
5461,399
Factor Arrows
479,817

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, 5, 47, 9817

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 47 x 9,817 = 36,911,920

This can also be written as 24 x 51 x 471 x 9,8171 = 36,911,920

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


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