Q: What are the prime factors of the number 65,134,800?

 A: 2, 3, 5, 37, 163

Why are those the prime factors of the number 65,134,800?

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 65,134,800

65,134,800
Factor Arrows
232,567,400
Factor Arrows
216,283,700
Factor Arrows
28,141,850
Factor Arrows
24,070,925
Factor Arrows
31,356,975
Factor Arrows
3452,325
Factor Arrows
3150,775
Factor Arrows
530,155
Factor Arrows
56,031
Factor Arrows
37163

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, 37, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 5 x 37 x 163 = 65,134,800

This can also be written as 24 x 33 x 52 x 371 x 1631 = 65,134,800

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


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