Pre-Algebra Review

Front

What is a prime number?

Back

A prime number has only two factors: 1 and itself.

Tags

CCSS.4.OA.B.4

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Tags

CCSS.4.OA.B.4

Front

What is the prime factorization of 33?

Back

The prime factorization of 33 is 11 x 3.

Tags

CCSS.4.OA.B.4

Front

What is the smallest odd prime number?

Back

The smallest odd prime number is 3.

Tags

CCSS.4.OA.B.4

Front

List all the factors of 27.

Back

The factors of 27 are 1, 3, 9, and 27.

Tags

CCSS.4.OA.B.4

Front

What is a composite number?

Back

A composite number has more than two factors.

Tags

CCSS.4.OA.B.4

Front

What is the difference between prime and composite numbers?

Back

Prime numbers have exactly two factors, while composite numbers have more than two.

Tags

CCSS.4.OA.B.4

Front

What is the prime factorization of 12?

Back

The prime factorization of 12 is 2 x 2 x 3 or 2^2 x 3.

Front

What is the greatest common factor (GCF) of 8 and 12?

Back

The GCF of 8 and 12 is 4.

Front

What is the least common multiple (LCM) of 4 and 5?

Back

The LCM of 4 and 5 is 20.