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To get the Greates Common Factor (GCF) of 1095 and 1520 we need to factor each value first and then we choose all the copies of factors and multiply them:
|1095: || || || || ||3||5|| ||73|
|1520: ||2||2||2||2|| ||5||19|| |
|GCF: || || || || || ||5|| || |
The Greates Common Factor (GCF) is: 5