Since, HCF of given numbers is 15. So, numbers are 15 x 2 = 30, 15 x 5 = 75 and 15 x 6 = 90 30 = 2 x 3 x 5 75 = 3 x 5 x 5 = 3 x 52 90 = 2 x 3 x 3 x 5 = 2 x 32 x 5 Therefore, required LCM = 2 x 32 x 52 = 450
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Qu...
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The average of all prime numbers between 32 and 69 is.
