UPSC Prelims 2025 · CSAT (Paper 2) · Q28
Basic Numeracy
Hard · Number theory: LCM-HCF combinatorics
There are n sets of numbers, each having only three positive integers, with LCM equal to 210 and HCF equal to 1. What is the value of n?
UPSC Prelims 2025 · CSAT (Paper 2) · Q28
Hard · Number theory: LCM-HCF combinatorics
There are n sets of numbers, each having only three positive integers, with LCM equal to 210 and HCF equal to 1. What is the value of n?