6TH GRADE (Divisibility & Prime/Composite NUMBERS)

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF is the largest number that divides two or more numbers without leaving a remainder.

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 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 is the divisibility rule for 2?

Back

A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8).

Front

What is the divisibility rule for 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Front

What is the divisibility rule for 5?

Back

A number is divisible by 5 if its last digit is 0 or 5.

Front

What is the prime factorization of a number?

Back

The prime factorization of a number is expressing it as a product of prime numbers.

Front

Is 1 a prime number?

Back

No, 1 is not considered a prime number.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the prime factorization of 30?

Back

The prime factorization of 30 is 2 x 3 x 5.