GRE Quantitative Reasoning › How to find out if a number is prime
Quantitative Comparison
Quantity A: The number of prime numbers between 0 and 100, inclusive.
Quantity B: The number of prime numbers between 101 and 200, inclusive.
A prime number is divisible by:
Which statement is false about prime numbers?
Which number is greater than the sum of all the prime factors of 330?
Quantitative Comparison
Quantity A: The smallest prime number multiplied by 3 and divided by the least common multiple of 5 and 10
Quantity B: The smallest odd prime number multiplied by 2 and divided by the 2nd smallest odd prime
If x is a prime number, then 3_x_ is
Which of the following pairs of numbers are twin primes?
Which of the following is a prime number?
a, b and c are integers, and a and b are not equivalent.
If ax + bx = c, where c is a prime integer, and a and b are positive integers which of the following is a possible value of x?
What must be true of all prime numbers?