Drop a 1 to Make a Prime

Random Science or math Quiz

Can you pick the numbers which will become prime if a 1 is removed?

Quiz not verified by Sporcle

 plays        
How to Play
Each number in the quiz contains one or more 1s. Click on the numbers that will become prime numbers if a 1 is removed. Example: Removing the '1' in '31' leaves '3', so this would count. On the other hand, removing the '1' from '216' leaves '26', which is not prime, so this would not count. (N.B.: for numbers with more than one '1', remove just one of them.)
Score 0/20 Timer 03:00
Guesses Remaining 20 Correct 0 Wrong 0

Friend Scores


  Player Best Score Plays Last Played
You You haven't played this game yet.

You Might Also Like...

Extras

Created Jan 8, 2014Curator's PickReportNominate
Tags:Clickable, math, Numbers, mathematics, prime, Prime Numbers