PrimeXTime vs Count Up

Kill some time and give your brain a little exercise at the same time with this simple game. You start with a random number and then start dividing by single-digit primes (2, 3, 5 or 7). When you can't do any more divisions you 'bump' the number -- multiplying by 10 and adding any single digit. You win the game by reducing the original number to 1.

Challenge your mind with the addictive math puzzle that makes arithmetic fun! Combine number tiles and operators to reach target totals while unlocking achievements and improving your mental math skills. *** Why CountUp? *** • Boost mental arithmetic and problem-solving skills • Master addition, subtraction, multiplication, and division • Perfect for students, teachers, and math enthusiasts • No time pressure - think at your own pace • Completely offline - play anywhere, anytime • Suitable for all ages - from elementary school to adults *** How To Play *** Select number tiles and operators to build equations that reach the target total. Remember: it's a running calculation, so 4 + 5 × 6 equals (4 + 5) × 6 = 54. Find multiple solutions to unlock achievements and complete each grid. Your progress is automatically saved! *** 9 Exciting Achievements *** • "Solved": Reach the target • "Five Ways": Find 5+ unique solutions • "Three": Use only 3 tiles maximum • "Even/Odd": Use even or odd number of tiles • "Divide & Conquer": Include division in your solution • "Smooth Operators": Use all four operators • "Stay Positive": Solve without subtraction • "10+": Use only double-digit tiles *** Multiple Grid Sizes *** Start small or jump into bigger challenges: • 3×3 (9 tiles) - Perfect for beginners • 4×3 (12 tiles) - Step up the challenge • 4×4 (16 tiles) - For serious puzzlers • 5×4 (20 tiles) - Ultimate brain workout *** Features *** • Clean, intuitive interface • Progress tracking and statistics • Share your grids with friends • Regular updates and improvements Download now and start sharpening your math skills with this engaging puzzle game!