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Answers (1)
12 = 4*3 16 = 4*4 20 = 4*5 24 = 4*6 = 4*2*3 perfect squares come in pairs of equal factors so we need 4*4*25*9 = 3600 is the right method and 3600 is the right answer.but it is little bit tricky. NOTE:perfect squares come in pairs of equal factors we have
