Q: What are the prime factors of the number 131,547,200?

 A: 2, 5, 82217

Why are those the prime factors of the number 131,547,200?

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 131,547,200

131,547,200
Factor Arrows
265,773,600
Factor Arrows
232,886,800
Factor Arrows
216,443,400
Factor Arrows
28,221,700
Factor Arrows
24,110,850
Factor Arrows
22,055,425
Factor Arrows
5411,085
Factor Arrows
582,217

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, 82217

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 5 x 5 x 82,217 = 131,547,200

This can also be written as 26 x 52 x 82,2171 = 131,547,200

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


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