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1.
The greatest common factor of 8 and 20 is
2.
The common factor of 9 and 15 is
3.
The common factor of 4 and 15 is
4.
Which of the following pairs of number are not co-prime?
5.
Which of the following pairs of number are co-prime?
6.
The greatest common factor of 4, 8 and 12 is
7.
The greatest common factor of 5, 15 and 25 is
8.
The common factor of 3, 4 and 9 is
9.
The greatest common factor of 75,60 and 210 is
10.
The smallest common factor of 4, 12 and 16 is