Shipping and any applicable taxes will be calculated at checkout. FAKTORIGI is a fast-paced, screen-free math card game that turns prime number factorization practice into lively fun for both kids and adults. Players race to match blue number cards to red target cards, building math fluency, memory, and strategy in every round. Easy to learn in just three minutes, it’s perfect for families, classrooms, and game nights, encouraging friendly competition and confidence in math skills. Each set includes 160 colorful cards and a clear rulebook in a durable, gift-ready box, and can be played alone or as part of the MATEMATIGI COLLECTION with SUMIGI and MULTIGI for progressive learning and long-lasting engagement.