Q: What are the prime factors of the number 2,983,936?

 A: 2, 31, 47

Why are those the prime factors of the number 2,983,936?

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 2,983,936

2,983,936
Factor Arrows
21,491,968
Factor Arrows
2745,984
Factor Arrows
2372,992
Factor Arrows
2186,496
Factor Arrows
293,248
Factor Arrows
246,624
Factor Arrows
223,312
Factor Arrows
211,656
Factor Arrows
25,828
Factor Arrows
22,914
Factor Arrows
21,457
Factor Arrows
3147

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, 31, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 31 x 47 = 2,983,936

This can also be written as 211 x 311 x 471 = 2,983,936

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


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