GCD & LCM
by Anonymous
Compare two numbers' factors and multiples in Venn diagrams and a bus timeline to find the greatest common factor and lowest common multiple.
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About this app
GCD & LCM is an interactive elementary math learning app for exploring the greatest common factor and least common multiple of two numbers. Use the GCF tab to compare factors in a Venn diagram, the LCM tab to line up multiples, and the bus-timing tab to see LCM in a repeating real-life situation. Adjustable number controls, explanations, formulas, and four missions per section support guided practice.
Use cases
- Elementary students practicing GCF and LCM
- Teachers demonstrating factors and multiples
- Parents helping children review fifth-grade math
- Learners connecting LCM with repeating bus schedules
Features
- Venn diagram comparison of two numbers’ factors
- Side-by-side multiple lists with the first shared multiple highlighted
- Bus interval activity showing when two buses meet again
- Adjustable first and second numbers with plus and minus controls
- Four goal-based missions in each learning section
- Reset and next-mission controls with in-app explanations