合ごう成せい数すう

noun

composite number

A positive integer that has at least one divisor other than 1 and itself. Used in number theory and elementary mathematics.

• 4は最さい小しょうの合ごう成せい数すうです。

  4 is the smallest composite number.

• 素そ数すうと合ごう成せい数すうの違ちがいを説せつ明めいしてください。

  Please explain the difference between prime numbers and composite numbers.