Q: What are the prime factors of the number 3,866,360?

 A: 2, 5, 163, 593

Why are those the prime factors of the number 3,866,360?

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 3,866,360

3,866,360
Factor Arrows
21,933,180
Factor Arrows
2966,590
Factor Arrows
2483,295
Factor Arrows
596,659
Factor Arrows
163593

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, 163, 593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 163 x 593 = 3,866,360

This can also be written as 23 x 51 x 1631 x 5931 = 3,866,360

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


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