This app calculates the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) for up to four numbers. It also provides prime factorization and keeps a history of calculations, which can be emailed.



88+ iOS apps curated and reviewed
Out of 88+ gcd and lcm apps on iOS, 16 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $5.99 | 2.0★ (2) | No | No | Sep 2026 | ||
| 2 | Free | — | Yes | No | Jul 2026 | ||
| 3 | Free | 4.5★ (2) | Yes | No | May 2026 | ||
| 4 | Free | — | Yes | No | Aug 2026 | ||
| 5 | $0.99 | — | No | No | May 2026 | ||
| 6 | $0.99 | — | No | No | Sep 2026 | ||
| 7 | Free | — | — | No | Jul 2026 | ||
| 8 | Free | 5.0★ (1) | No | No | May 2026 |



This app calculates the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) for up to four numbers. It also provides prime factorization and keeps a history of calculations, which can be emailed.






This app provides a straightforward way to calculate the Greatest Common Factor (GCF) for multiple numbers. It offers step-by-step explanations for math problems and real-world scenarios, making it a valuable tool for students and educators. The clean design ensures a stress-free learning experience.