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Determine the prime factors of all three numbers.
8 = 2 x 2 x 2 = 23
16 = 2 x 2 x 2 x 2 = 24
22 = 2 x 11
The LCM is the product of the highest power of each prime factor.
The highest power of 2 is 24 = 16
The highest power of 11 is just 11 (technically it is 111 but this equals 11)
The LCM is therefore 16 x 11 = 176.
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