Difficult Math Problem #80 - Number Theory
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Source: Beat The GMAT — Problem Solving |
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An integer is a whole number (not a fractional number) that can be positive, negative or zero.
examples include ...-3,-2,-1,0,1,2,3,4,5...
The question i am about to solve now specified it's a positive integer, so let pay attention to the positive integers alone.
other condition in this question is four different prime factors each greater than 2. Prime factors are number that are only divisible by itself and 1.
examples of prime factors are 1,2,3,5,7,9,11,13,17 etc
so, the four different prime factors that are greater than 2 are (3,5,7,11)
Form the product; 3*5*7*11=1155
examples include ...-3,-2,-1,0,1,2,3,4,5...
The question i am about to solve now specified it's a positive integer, so let pay attention to the positive integers alone.
other condition in this question is four different prime factors each greater than 2. Prime factors are number that are only divisible by itself and 1.
examples of prime factors are 1,2,3,5,7,9,11,13,17 etc
so, the four different prime factors that are greater than 2 are (3,5,7,11)
Form the product; 3*5*7*11=1155

















