Number Theory Scrimmage

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Front

What is the sum of the smallest five different prime numbers?

Back

28.

Front

Identify a prime number between 70 and 80.

Back

79.

Front

Which of the following is NOT a prime number: 29, 23, 17, 39?

Back

39.

Front

What is prime factorization?

Back

Prime factorization is the process of expressing a number as the product of its prime factors.

Front

What is the prime factorization of 84?

Back

2^2 x 3 x 7.

Front

Which number is NOT prime: 2, 23, 63, 59?

Back

63.

Front

What is the difference between prime and composite numbers?

Back

Prime numbers have exactly two distinct positive divisors (1 and itself), while composite numbers have more than two.

Front

How can you determine if a number is prime?

Back

Check if it has any divisors other than 1 and itself.