This is an MCQ-based quiz for GRE on How to find the greatest common factor, least common multiple, and other factors.
Which of the following pairs of numbers are twin primes?
If x is a prime number, then 3x is
Which of the following is a prime number?
What is the greatest common factor of 18 and 24?
If a is the greatest common divisor of 64 and 14 and b is the least common multiple of 16 and 52 then a + b = ?
What is the least common multiple of 3, 4x, 5y, 6xy, and 10y?
What is the least common multiple of 45 and 60?
Find the greatest common factor of 16 and 24.
What is the greatest common factor of 6930 and 288 ?
What is the least common multiple of 350 and 6270 ?
None of the other answers