Greatest Common Factor | GCF | MathHelp.com - By MathHelp.com
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| 00:0-1 | To find the greatest common factor between two mono meals | |
| 00:03 | that are just numbers like 30 and 42 . We | |
| 00:07 | start by setting up a factor tree for each of | |
| 00:10 | those numbers , 30 is just three times 10 and | |
| 00:17 | 10 is two times 5 , 42 is seven times | |
| 00:23 | 6 and six is 2 times three . Our next | |
| 00:29 | step is to take a look at those factor trees | |
| 00:32 | and find the factors that are in common to both | |
| 00:35 | numbers notice That both numbers have a factor of three | |
| 00:42 | And both numbers have a factor of two . Once | |
| 00:47 | you've found the factors that match up simply multiply those | |
| 00:51 | factors together to get the greatest common factor of the | |
| 00:54 | two numbers . So since the threes match up and | |
| 00:58 | the twos matchup , The greatest common factor is three | |
| 01:02 | times 2 or six and that's the answer . |
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