Number Theory

What is the next prime number after 47?

• 50
• 53
• 51
• 49

Tags

CCSS.4.OA.B.4

Which of the following numbers is a multiple of 7?

• 65

• 56

• 50

• 48

Tags

CCSS.4.OA.B.4

What is the difference between the value of the digit 4 in 3468 and the value of the digit 1 in 2917?

• 451

• 390

• 30

• 3

Tags

CCSS.4.NBT.A.1

Which number is referred to as the Additive Identity?

• 0

• 1

• 10

• 100

Tags

CCSS.7.NS.A.1B

The Multiplicative Identity is

• 0

• 1

• 10

• 100

Tags

CCSS.6.NS.B.4

The Highest Common Factor (HCF) of 12, 15 and 60 is

• 1

• 3

• 12

• 60

What is the Lowest Common Multiple (LCM) of 12 and 18?

• 36
• 24
• 10
• 42

A number that has three or more factors is called a

• prime number
• composite number
• odd number
• rational number

Tags

CCSS.4.OA.B.4

All Rational and Irrational numbers are called

• Real numbers
• Complex numbers
• Whole numbers
• Imaginary numbers

I can only be divided exactly by two numbers. Who am I?

• Prime number
• Composite number
• Even number
• Odd number

Tags

CCSS.4.OA.B.4