Answers

2015-06-30T23:59:37+08:00
Since they have no common factors, just multiply them with each other. 7×8×9= 504. Their LCM is 504.
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2015-07-05T21:04:11+08:00
7=7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105, 112, 119, 126, 133, 140, 147, 154
8=8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152
9=9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144, 153
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