Q: What are the prime factors of the number 3,650,500?

 A: 2, 5, 7, 149

Why are those the prime factors of the number 3,650,500?

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 3,650,500

3,650,500
Factor Arrows
21,825,250
Factor Arrows
2912,625
Factor Arrows
5182,525
Factor Arrows
536,505
Factor Arrows
57,301
Factor Arrows
71,043
Factor Arrows
7149

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, 7, 149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 7 x 7 x 149 = 3,650,500

This can also be written as 22 x 53 x 72 x 1491 = 3,650,500

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


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