Brainteaser
posted by
Anonymous
.
77777777777777777 6652137

Brainteaser 
PsyDAG
Inadequate data.

Brainteaser 
MathMate
They do not share common factors.
The first number has three factors, 7, a 7digit factor and a 10digit factor.
The second number has 3, and a 7digit factor.