The numbers are co-prime so the only common factor is 1.
Chat with our AI personalities
Otherwise known as greatest common factor, it is 63.
The greatest common factor is 9
1, 3, 7, 9, 21, 27, 63, 81, 189, 567
The numbers below are the factor pairs of 567 (multiplied together they equal 567) (1, 567) (3, 189) (7, 81) (9, 63) (21, 27)
Most Common Factor, Greatest Common Factor, Highest Common Factor... all the same thing.