Assume I have a problem such as "Prove that 10353+53103 is divisible by 39."
This would mean I wanted to prove that \displaystyle103^{53} + 53^{103}\equiv0\pmod{39}.
My starting statement would be then "\displaystyle103^{53} + 53^{103}\pmod{39}" and I would then equate this to "\displaystyle103^{53}\pmod{39} + 53^{103}\pmod{39}" and then continue.
Am I allowed to distribute the mod like that?
Thanks.
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