1.
The gcf of 11 and 7 is 1, so the GCF of 10, 1015, 15, 11 & 7 cannot be any greater.
The greatest common factor of 4, 6, 10, and 22 is 2.
The GCF is 1.
The greatest common factor of the numbers 15 and 11 is 1.
10/15 = 2/3
The GCF is 5.
The LCM of 1015 and 18 is 18270. The LCM of 10, 15 and 18 is 90.
The GCF is 5.
1015 = 1,000,000,000,000,000
1015 is one quadrillion.
The GCF is 1.
The GCF is 1.
The GCF is 1.