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Neha sharma
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M and N are two positive integers and each of them has 20 factors. If r is the total number of prime factors of M and s is the total number of prime factors of N,then what is the maximum value of r-s?
a)0
b)1
c)2
d)6
e)26
a)0
b)1
c)2
d)6
e)26
