最大公因式

zuìdàgōngyīnshì
  1. (mathematics) greatest common factor
  2. greatest common factor

Wiktionary

Entry Composition

1 最大 zuìdà largest; biggest; greatest; maximum; maximal
2 公因式 gōngyīnshì
  1. common factor
  2. common divisor (of a math. expression)