Q: What are the prime factors of the number 36,868,689?

 A: 3, 11, 13, 1061

Why are those the prime factors of the number 36,868,689?

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 36,868,689

36,868,689
Factor Arrows
312,289,563
Factor Arrows
34,096,521
Factor Arrows
31,365,507
Factor Arrows
3455,169
Factor Arrows
3151,723
Factor Arrows
1113,793
Factor Arrows
131,061

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:

3, 11, 13, 1061

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 11 x 13 x 1,061 = 36,868,689

This can also be written as 35 x 111 x 131 x 1,0611 = 36,868,689

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


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