You can
put this solution on YOUR website!Well, since the two-digit palindromes are:
11, 22, 33, 44, 55, 66, 77, 88, 99 and each one of these is a multiple of 11, I'd say that 11 is the GCF of all of them. Let's have a look at the prime factors:
11 = 1 X 11
22 = 2 X 11
33 = 3 X 11
44 = 2 X 2 X 11
55 = 5 X 11
66 = 2 X 3 X 11
77 = 7 X 11
88 = 2 X 2 X 2 X 11
99 = 3 X 3 X 11
So you can see that 11 is the GFC.
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