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| =Additional Information= | | =Additional Information= |
| ==Useful websites== | | ==Useful websites== |
| + | #[http://en.wikipedia.org/wiki/Highest_common_factor Wikipedia information HCF] |
| + | #[http://en.wikipedia.org/wiki/Least_common_multiple Wikipedia information LCM] |
| + | |
| ==Reference Books== | | ==Reference Books== |
| | | |