Q: What are the prime factors of the number 3,035,520?

 A: 2, 3, 5, 17, 31

Why are those the prime factors of the number 3,035,520?

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 3,035,520

3,035,520
Factor Arrows
21,517,760
Factor Arrows
2758,880
Factor Arrows
2379,440
Factor Arrows
2189,720
Factor Arrows
294,860
Factor Arrows
247,430
Factor Arrows
223,715
Factor Arrows
37,905
Factor Arrows
32,635
Factor Arrows
5527
Factor Arrows
1731

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, 5, 17, 31

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 3 x 3 x 5 x 17 x 31 = 3,035,520

This can also be written as 27 x 32 x 51 x 171 x 311 = 3,035,520

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


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