Q: What are the prime factors of the number 36,867,820?

 A: 2, 5, 11, 103, 1627

Why are those the prime factors of the number 36,867,820?

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 36,867,820

36,867,820
Factor Arrows
218,433,910
Factor Arrows
29,216,955
Factor Arrows
51,843,391
Factor Arrows
11167,581
Factor Arrows
1031,627

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, 11, 103, 1627

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 103 x 1,627 = 36,867,820

This can also be written as 22 x 51 x 111 x 1031 x 1,6271 = 36,867,820

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


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