Can't figure it out(adsbygoogle = window.adsbygoogle || []).push({});

Prove that if n is an odd positive integer, then one of the numbers n+5 or n+7 is divisible by 4

My thoughts I dunno if this is right- Multiply n+5 and n+7, because if one of them is a multiple by 4 then shouldn't their product be divisible 4

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Odd positive integer proof

**Physics Forums | Science Articles, Homework Help, Discussion**