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(c) (91)Find the least square number exactly divisible by each one of thefollowing numbers.(a) 8, 9, 10b) 4, 6, 10, 18

Answer»

1)the L.C.M of 8,9,10 is 360

now 360 = 2*2*2*3*3*5here 2 and 5 are not in pair to make the number a perfect square so, multiply 360 with 2 and 5 the number is 360*10 = 3600

2) 4,6,10,18 The L.C.M is 180 so, 180 = 2*2*3*3*5

so, there only 5 is needed to be multiplied to make the number a perfect square..so, the number is 180*5 = 900



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