Q: What are the prime factors of the number 4,586,240?

 A: 2, 5, 3583

Why are those the prime factors of the number 4,586,240?

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 4,586,240

4,586,240
Factor Arrows
22,293,120
Factor Arrows
21,146,560
Factor Arrows
2573,280
Factor Arrows
2286,640
Factor Arrows
2143,320
Factor Arrows
271,660
Factor Arrows
235,830
Factor Arrows
217,915
Factor Arrows
53,583

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, 5, 3583

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 5 x 3,583 = 4,586,240

This can also be written as 28 x 51 x 3,5831 = 4,586,240

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


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