Q: What are the prime factors of the number 32,782,376?

 A: 2, 11, 31, 61, 197

Why are those the prime factors of the number 32,782,376?

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 32,782,376

32,782,376
Factor Arrows
216,391,188
Factor Arrows
28,195,594
Factor Arrows
24,097,797
Factor Arrows
11372,527
Factor Arrows
3112,017
Factor Arrows
61197

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, 11, 31, 61, 197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 31 x 61 x 197 = 32,782,376

This can also be written as 23 x 111 x 311 x 611 x 1971 = 32,782,376

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


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