Prove that √2 is an irrational number.
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Assertion (A) : For any two natural numbers a and b, the HCF of a and b is a factor of the LCM of a and b. Reason (R) : HCF of any two natural numbers divides both the numbers.
The LCM of two numbers is 3600. Which of the following can not be their HCF ?
Using prime factorisation, find the HCF of 180, 140 and 210.
Using prime factorisation, find the HCF of 144, 180 and 192.
Find the LCM and HCF of 92 and 510, using prime factorisation.