Q: What are the prime factors of the number 87,056,112?

 A: 2, 3, 11, 13, 1153

Why are those the prime factors of the number 87,056,112?

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 87,056,112

87,056,112
Factor Arrows
243,528,056
Factor Arrows
221,764,028
Factor Arrows
210,882,014
Factor Arrows
25,441,007
Factor Arrows
31,813,669
Factor Arrows
11164,879
Factor Arrows
1114,989
Factor Arrows
131,153

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, 11, 13, 1153

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 11 x 11 x 13 x 1,153 = 87,056,112

This can also be written as 24 x 31 x 112 x 131 x 1,1531 = 87,056,112

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


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