Factors of 18

Synopsis
Mathman plays a video game in which he must eat all numbers that are factors of 18.

Mathman starts by eating 9 and 6. But when he accidentally eats 4, he is eaten by Mr. Glitch.

Correct

 * 2
 * 3
 * 6
 * 9
 * 18

Incorrect

 * 4
 * 7
 * 8
 * 40

Quotes
Announcer: "And beware the ill-tempered Mr. Glitch. He will eat you if you are wrong."

Trivia

 * 1 is the only factor of 18 that is not present.