LCM | Least Common Multiple | MathHelp.com - By MathHelp.com
Transcript
| 00:0-1 | To find the least common multiple or L . c | |
| 00:02 | . m . of six and 8 . We begin | |
| 00:05 | by listing the first few multiples of each number . | |
| 00:09 | The multiples we list for six are one time 6 | |
| 00:14 | or six . two times 6 or 12 three times | |
| 00:20 | 6 or 18 and four times 6 or 24 notice | |
| 00:29 | that we skipped zero times six because zero times six | |
| 00:33 | is zero and the least common multiple cannot be zero | |
| 00:37 | . Next we list the multiples of eight while listing | |
| 00:40 | the multiples of eight . It's helpful to keep one | |
| 00:43 | eye on the multiples of six so that we know | |
| 00:45 | when we found the least common multiple . So One | |
| 00:51 | times eight is 8 which is not a multiple of | |
| 00:55 | six . So we go on Two times eight is | |
| 01:00 | 16 which is not a multiple of six . So | |
| 01:03 | we go on three times 8 is 24 which is | |
| 01:09 | a multiple of six . So we have found our | |
| 01:12 | least common multiple . Notice that we can stop here | |
| 01:16 | because we only want the least common multiple and any | |
| 01:19 | other multiples we find for these two numbers will be | |
| 01:22 | greater than 24 So the least common multiple , or | |
| 01:26 | L . C . M . Of six and eight | |
| 01:28 | , is 24 . |
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