Number Theory

Greatest Common Divisor / Lowest Common Multiple

Relationship between GCD and LCM

         

What is the lowest common multiple of 7 and 11?

When the GCD of 2048 and 3072 is 1024, what is the LCM of 2048 and 3072?

AA and BB are positive integers such that

AB=540,lcm(A,B)=90. A B=540, \quad \text{lcm}(A, B)=90.

What is gcd(A,B)?\gcd(A, B)?

If the GCD of AA and BB is 7,7, the LCM is 63,63, and A>B,A>B, what is the value of B?B?

What is the lowest common multiple of 4 and 9?

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