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To get the Greates Common Factor (GCF) of 297 and 2100 we need to factor each value first and then we choose all the copies of factors and multiply them:
|297: || || ||3||3||3|| || || ||11|
|2100: ||2||2||3|| || ||5||5||7|| |
|GCF: || || ||3|| || || || || || |
The Greates Common Factor (GCF) is: 3