Prime and Composite

Front

What is a prime number?

Back

A prime number is a number that has exactly two distinct positive factors: 1 and itself.

Front

What is a composite number?

Back

A composite number is a number that has more than two positive factors.

Front

Is the number 1 prime or composite?

Back

Neither, because it has only one factor.

Front

What are factors?

Back

Factors are numbers that can be multiplied together to produce another number.

Front

Is 2 a prime number?

Back

Yes, 2 is a prime number because it has exactly two factors: 1 and 2.

Front

Is 4 a prime number?

Back

No, 4 is a composite number because it has three factors: 1, 2, and 4.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

Can a prime number be even?

Back

Yes, the only even prime number is 2.

Front

What is the largest two-digit prime number?

Back

The largest two-digit prime number is 97.

Front

How can you determine if a number is prime?

Back

To determine if a number is prime, check if it has any divisors other than 1 and itself.