最大 さいだい公約 こうやく すうじゃなかったです
saidaikōyaku sūja nakattadesu

Noun
Desu Copula

The polite, past negative form of 最大公約数

1. Greatest common divisor wasn't.; It wasn't the greatest common divisor.

Past/Perfective
Negative
Polite
Casual Register
Mathematics