LCM (Lowest common multiple) & HCF (Highest common factor) are important and part of the Number System. One should understand it to solve important number theory based questions and remainder theorem ...
It would take a long time to write out all the factors and multiples of 24 and 180 and compare the lists. It would also be easy to make a mistake. A more efficient method is to use prime factors.
SSC conducts CGL exam once every year for recruiting the Grade-‘B’ & ‘C’ officers in various government offices and ministries. Quantitative Aptitude is one subject with the other three. HCF & LCM is ...
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