If the HCF of two positive integers a and b is 1, then their LCM is :

Question

MCQ (Single)Relationship Between HCF and LCM of Two NumbersCBSE PYQ

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Prove that √2 is an irrational number.

TextHCF Using Prime Factorisation MethodLCM Using Prime Factorisation MethodRelationship Between HCF and LCM of Two NumbersIrrationality of Square Root of Prime Numbers

Proof by Contradiction Method

HCF Using Prime Factorisation Method

LCM Using Prime Factorisation Method

Relationship Between HCF and LCM of Two Numbers

Irrationality of Square Root of Prime Numbers

Proof by Contradiction Method

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.

Assertion-ReasonHCF Using Prime Factorisation MethodRelationship Between HCF and LCM of Two Numbers

The value of (HCF – LCM) for the two numbers 3 and 5 is :

MCQ (Single)Relationship Between HCF and LCM of Two Numbers

Assertion: For any two positive integers a and b, HCF(a, b) × LCM(a, b) = a × b Reason: The HCF of two numbers is 5 and their product is 150. Then their LCM is 40.

Assertion-ReasonRelationship Between HCF and LCM of Two Numbers