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Difficult Math Problem #80 - Number Theory

Expert replies
Source: — Problem Solving |

by 800guy » Sun Dec 31, 2006 12:26 pm
OA coming when a few people reply
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by sss » Wed Jan 10, 2007 9:01 pm
is that 3*5*7*11 =1155 ??
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OA

by 800guy » Fri Jan 12, 2007 12:31 am
OA:

3*5*7*11 = 1155
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by BTGmoderatorRO » Fri Sep 01, 2017 8:00 pm
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
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