Problem 1219
Daily Math Challenge - October 01, 2024
Some positive integers have the property that they are equal to the product of their digits plus the sum of their digits. For example, 79 =7*9 + 7 + 9. Find the number of 2-digit positive integers with this property.
Problem submitted by Pat Costello, Eastern Kentucky University
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!