Dance ensemble

The dance ensemble took the stage in pairs. During dancing, the dancers gradually formed groups of four, six and nine. How many dancers have an ensemble?

Correct result:

n =  36


2 ...  prime number 4=22 6=23 9=32 LCM(2,4,6,9)=2232=36  n=LCM(2,4,6,9)=36

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