Q: What are the prime factors of the number 2,973,024?

 A: 2, 3, 31, 37

Why are those the prime factors of the number 2,973,024?

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 2,973,024

2,973,024
Factor Arrows
21,486,512
Factor Arrows
2743,256
Factor Arrows
2371,628
Factor Arrows
2185,814
Factor Arrows
292,907
Factor Arrows
330,969
Factor Arrows
310,323
Factor Arrows
33,441
Factor Arrows
31,147
Factor Arrows
3137

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, 3, 31, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 31 x 37 = 2,973,024

This can also be written as 25 x 34 x 311 x 371 = 2,973,024

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


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