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To find the lowest common multiple, first break down the two numbers into their prime factors:

8=2x2x2

28=2x2x7

Next identify any common factors and discard the duplicates. Both numbers have two 2s, so we can discard 2 of them, leaving us with 2,2,2 and 7.

Multiply these together for the lowest common multiple:

2x2x2x7 = 56, so 56 is the LCM of 8 and 28.

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Q: What is lowest common multiple of 8 and 28?
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