Q: What are the prime factors of the number 102,153,600?

 A: 2, 3, 5, 3547

Why are those the prime factors of the number 102,153,600?

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 102,153,600

102,153,600
Factor Arrows
251,076,800
Factor Arrows
225,538,400
Factor Arrows
212,769,200
Factor Arrows
26,384,600
Factor Arrows
23,192,300
Factor Arrows
21,596,150
Factor Arrows
2798,075
Factor Arrows
3266,025
Factor Arrows
388,675
Factor Arrows
517,735
Factor Arrows
53,547

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, 3547

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 2 x 3 x 3 x 5 x 5 x 3,547 = 102,153,600

This can also be written as 27 x 32 x 52 x 3,5471 = 102,153,600

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


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