HcfLcm: HCF & LCM Finder

DAVID LO

About this app

HcfLcm: HCF (GCD) & LCM Finder

Calculate the Highest Common Factor (HCF / GCD) and Least Common Multiple (LCM) instantly with HcfLcm — a precision mathematical calculator crafted for students, teachers, and mathematicians.

Compute both HCF and LCM simultaneously for 2 or 3 integers using Euclid's division algorithm and prime factorization methods with step-by-step clarity.

Features:
• Dual & Triple Integer Modes — Compute HCF and LCM for 2 or 3 numbers simultaneously.
• Multiple Calculation Modes — Choose between Combined Output (Both), HCF Only, or LCM Only.
• Live Venn Factor Canvas — Dynamic interactive topological diagram mapping prime factor overlaps.
• Step-by-Step Euclidean Algorithm — Complete sequence of division steps and remainders displayed.
• Prime Factorization Breakdown — Visual prime decomposition powers (e.g. 2³ × 3²).
• Product Relation Check — Instant mathematical validation using HCF(a, b) × LCM(a, b) = a × b.
• One-Tap Clipboard Copy — Copy complete calculation summaries directly to clipboard.
• 100% Offline Engine — Instant on-device calculations without needing any network connection.

Privacy & Safety:
• 100% Offline — Fully functional without internet connectivity or network requests.
• Zero Data Collection — No calculations, numbers, or user data are ever tracked or stored externally.
• No Ads & Zero Distractions — Clean, distraction-free environment for pure productivity.
• Zero Permissions — Requires no permissions to operate safely and securely.

Master number theory and factor calculations with HcfLcm.