Q: What are the prime factors of the number 66,504,000?

 A: 2, 3, 5, 17, 163

Why are those the prime factors of the number 66,504,000?

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 66,504,000

66,504,000
Factor Arrows
233,252,000
Factor Arrows
216,626,000
Factor Arrows
28,313,000
Factor Arrows
24,156,500
Factor Arrows
22,078,250
Factor Arrows
21,039,125
Factor Arrows
3346,375
Factor Arrows
569,275
Factor Arrows
513,855
Factor Arrows
52,771
Factor Arrows
17163

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, 17, 163

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 3 x 5 x 5 x 5 x 17 x 163 = 66,504,000

This can also be written as 26 x 31 x 53 x 171 x 1631 = 66,504,000

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


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