what is the smallest number which is exactly divisible by 36 45 and 63
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3 is the smallest number which is exactly divisible
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You would need to do the factors of the numbers
Factor all the numbers.
36 =2*2*3*3
45=3*3*5
63=3*3*7
36, 45 and 63 have 3*3 common
Count all the factors that are common in two or more of the numbers only once.
So, the lowest common multiple is
Hence, LCM = 2*2*3*3*5*2*2*7 = 5040
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