Q: What are the prime factors of the number 526,243,200?

 A: 2, 3, 5, 7, 41, 191

Why are those the prime factors of the number 526,243,200?

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 526,243,200

526,243,200
Factor Arrows
2263,121,600
Factor Arrows
2131,560,800
Factor Arrows
265,780,400
Factor Arrows
232,890,200
Factor Arrows
216,445,100
Factor Arrows
28,222,550
Factor Arrows
24,111,275
Factor Arrows
31,370,425
Factor Arrows
5274,085
Factor Arrows
554,817
Factor Arrows
77,831
Factor Arrows
41191

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, 7, 41, 191

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 5 x 5 x 7 x 41 x 191 = 526,243,200

This can also be written as 27 x 31 x 52 x 71 x 411 x 1911 = 526,243,200

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


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