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Maths Puzzle
All the divisors of 360, including 1 and the number itself, are summed up. The sum is 1170. What is the sum of the reciprocals of all the divisors of 360?
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- sum of reciprocals= sum of factors/(LCM of factors)
hence,
let sum of reciprocals be x,
x=1170/360
x=3.25 - 10 years agoHelpfull: Yes(2) No(1)
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