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As low as possible (
Posted on 20130412
)
What is the lowest value of a product of two positive numbers
a
and
b
, given that
a+b=a*b
?
No Solution Yet
Submitted by
Ady TZIDON
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)
Analytical solution (spoiler)
 Comment 2 of 6 
(1) a + b = ab
(2) solving for b, we get b = a/(a1)
by inspection, b can only be a positive integer if a =2
and
by substitution, b = 2
(3) So the lowest value of ab
= highest value of ab
= only value of ab
= 4
Edited on
April 12, 2013, 1:20 pm
Posted by
Steve Herman
on 20130412 13:13:30
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