1.
[IMO]
What is the sum of all the prime numbers between 30 and 40?
2.
[IMO]
What is the sum of the first 10 natural numbers?
3.
[IMO]
What is the smallest multiple of 4 that is also a perfect square?
4.
[IMO]
Which of the following is a prime factor of 56?
5.
[IMO]
What is the largest prime number less than 20?
6.
[IMO]
Which of the following numbers is a multiple of both 3 and 4?
7.
[IMO]
Which of the following numbers is a multiple of 7?
8.
[IMO]
Which of the following fractions is in its simplest form?
9.
[IMO]
If a number is divisible by both 2 and 5, which of the following numbers must also divide it?
10.
[IMO]
What is the value of 7^2 + 5^2?
11.
[IMO]
What is the smallest number that can be evenly divided by all the numbers from 1 to 10?
12.
[IMO]
What is the product of the first 5 prime numbers?
13.
[IMO]
Which of the following is a composite number?