Prime and Composite

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

What is the first prime number?

Back

The first prime number is 2.

Front

Is the number 1 a prime number?

Back

No, the number 1 is neither prime nor composite.

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that has more than two positive divisors.

Front

How many factors does a composite number have?

Back

A composite number has more than 2 factors.

Front

What are prime factors?

Back

Prime factors are the prime numbers that multiply together to give a composite number.

Front

What are the prime factors of 8?

Back

The prime factors of 8 are 2, 2, 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

What is the difference between prime and composite numbers?

Back

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