MATHEMATICS

Select one of the following problems to solve.

# Name Favorite Solved Level
1028 Collectable Cards Favorite 13,975 3
1093 Vampires Favorite 1,712 3
1138 Digits Count Favorite 983 8
1161 Factorial Sum Favorite 16,981 5
1163 Angry Ducks Favorite 1,279 7
1169 Grains in a Chess Board Favorite 6,801 4
1170 Blobs Favorite 11,378 3
1193 Base Conversion Favorite 3,565 3
1197 Back to High School Physics Favorite 9,223 1
1198 Hashmat the Brave Warrior Favorite 9,245 5
1199 Simple Base Conversion Favorite 4,004 3
1202 White Nights Festival Favorite 932 7
1212 Primary Arithmetic Favorite 4,687 8
1213 Ones Favorite 2,349 5
1214 Above Average Favorite 6,383 3
1219 Colourful Flowers Favorite 2,108 5
1220 The Trip Favorite 1,032 7
1221 Fast Prime Number Favorite 10,136 6
1230 Integral Favorite 68 10
1232 Rubik Cycle Favorite 239 7
1233 Star Favorite 958 6
1240 Fit or Dont Fit I Favorite 7,770 2
1247 Coast Guard Favorite 3,819 2
1264 An Easy Problem! Favorite 451 7
1279 Leap Year or Not Leap Year and … Favorite 2,354 6
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