Problem 879

Daily Math Challenge - February 16, 2023



Quick one (maybe) 

The greatest common factor (GCF) of a set of numbers is the greatest factor that all the numbers in the set share.  The GCF of 12 and 18 is 6.  What is the greatest possible GCF of seven different two-digit numbers?

Submit answer

Immediately after your correct answer is submitted, your name will be posted here.

Past problems
Individual Monthly & Annual Rankings
Leaderboard Monthly & Annual Rankings
Request solution

Custom Leaderboards Are Here!

Take the competition to the next level and encourage participation by creating custom leaderboards for your students or friends to join. Click below to try it out now!

Get Started with Custom Leaderboards