How many questions on Number System (LCM and HCF) have appeared in UPSC exams?

A total of 1 UPSC questions on Number System (LCM and HCF) have been asked across different years and paper types on LearnPro.

Is Number System (LCM and HCF) important for UPSC Prelims?

Yes. Number System (LCM and HCF) has been tested 1 times in UPSC exams based on our PYQ data. It falls under the Basic Numeracy section and is a recurring topic.

UPSC Number System (LCM and HCF) — Previous Year Questions

All 1 UPSC questions on Number System (LCM and HCF) from 2025 to 2025 — with answers and detailed explanations.

2025(1 questions)

Prelims · CSAT

Q18. There are n sets of numbers each having only three positive integers with LCM equal to 1001 and HCF equal to 1. What is the value ...

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