Q: What are the prime factors of the number 3,641,808?

 A: 2, 3, 17, 4463

Why are those the prime factors of the number 3,641,808?

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 3,641,808

3,641,808
Factor Arrows
21,820,904
Factor Arrows
2910,452
Factor Arrows
2455,226
Factor Arrows
2227,613
Factor Arrows
375,871
Factor Arrows
174,463

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, 17, 4463

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 17 x 4,463 = 3,641,808

This can also be written as 24 x 31 x 171 x 4,4631 = 3,641,808

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


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