6th Grade Quiz Review - Multiplication, GCF, LCM, Prime and Composite Numbers

Is 15 a prime or composite number or neither?

• prime

• composite

• neither

What is a composite number?

• A whole number greater than 1 that has more than 2 factors.

• A whole number greater than 1 that has exactly 2 factors, 1 and itself.

• A number that divides evenly into another number.

• A number that you multiply by another number.

What is the least common multiple (LCM) of 5 and 20?

• 4
• 5
• 20
• 100

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 2 and 3?

• 6
• 8
• 20
• 10

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 4 and 10?

• 4
• 40
• 15
• 20

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 6 and 8?

• 6
• 8
• 48
• 24

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 12 and 2?

• 24
• 2
• 12
• 36

Tags

CCSS.4.OA.B.4

A prime number is...

• a number that has only one factor.
• a number that has at least two factors.
• a number that has more than two factors.
• a number that has only two factors 1 and its self.
  (1 and itself)

Tags

CCSS.4.OA.B.4

Which list has only prime numbers?

• 2, 3, 4, 5
• 1, 5, 7, 9
• 2, 3, 5, 7
• 2, 4, 6, 8

Tags

CCSS.4.OA.B.4

What are the factors of 8?

• 1, 2, 4, 8
• 1, 8
• 1, 3, 8
• 1, 2, 8

Tags

CCSS.4.OA.B.4