5.4A Day 3 Elaborate Practice

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 all prime numbers between 30 and 50.

Back

31, 37, 41, 43, 47.

Front

Which number is NOT a prime number: 59, 37, 19, or 27?

Back

27 is NOT a prime number.

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that is not prime, meaning it has more than two positive divisors.

Front

What are factor pairs?

Back

Factor pairs are two numbers that, when multiplied together, equal a given number.

Front

Identify a factor pair of 132 that contains only composite numbers.

Back

6 x 22 is a factor pair that contains only composite numbers.

Front

What is the sum of a prime number and a composite number?

Back

The sum can be a prime number or a composite number, depending on the specific numbers chosen.

Front

Give an example of a prime number and a composite number whose sum is prime.

Back

11 (prime) + 20 (composite) = 31 (prime).

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the largest prime number less than 60?

Back

The largest prime number less than 60 is 59.