Q: What are the prime factors of the number 6,651,360?

 A: 2, 3, 5, 31, 149

Why are those the prime factors of the number 6,651,360?

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 6,651,360

6,651,360
Factor Arrows
23,325,680
Factor Arrows
21,662,840
Factor Arrows
2831,420
Factor Arrows
2415,710
Factor Arrows
2207,855
Factor Arrows
369,285
Factor Arrows
323,095
Factor Arrows
54,619
Factor Arrows
31149

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, 31, 149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 31 x 149 = 6,651,360

This can also be written as 25 x 32 x 51 x 311 x 1491 = 6,651,360

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


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