Which of the following is NOT a prime number?

• 51

• 47

• 61

• 37

Tags

CCSS.4.OA.B.4

Which best describes a composite number?

• A number that can be divided by 2 with 0 remaining.

• A number that cannot be grouped in twos.

• A number with exactly two factors.

• A number with more than two factors.

Tags

CCSS.4.OA.B.4

Which group of numbers contains only composite numbers?

• 1, 9, 18, 32

• 8, 15, 27, 32

• 2, 6, 24, 48

• 4, 12, 19, 36

Tags

CCSS.4.OA.B.4

The numbers 11, 13, 17, and 19 are prime because—

• they are odd numbers.

• they have exactly two factors.

• they cannot be divided by 2.

• they have more than two factors.

Tags

CCSS.4.OA.B.4

Choose all the prime numbers. You must select ALL correct answers!

• 27

• 43

• 99

• 53

• 87

Tags

CCSS.4.OA.B.4

Which of the following sets of numbers contains only prime numbers?

• 9, 17, 31, 37

• 2, 23, 43, 47

• 5, 21, 41, 43

• 2, 6, 23, 47

Tags

CCSS.4.OA.B.4

Kelly was asked to write the first 7 prime numbers. Which set shows the first seven prime numbers?

• 2, 3, 5, 7, 9, 11, 13

• 1, 2, 3, 5, 7, 11, 13

• 2, 3, 5, 7, 11, 13, 17

• 3, 5, 7, 9, 11, 13, 15

Tags

CCSS.4.OA.B.4

A number is even if it is divisible by which number?

• 1

• 5

• 0

• 2

Tags

CCSS.2.OA.C.3

Choose all of the even numbers. You must select ALL correct answers!

• 562

• 376

• 681

• 2,001

• 1,001

Which best describes an odd number?

• A number that cannot be grouped in twos

• A number based on groupings of 10

• A number that represents part of a whole

• A number that can be divided by 2 with 0 remaining

Tags

CCSS.2.OA.C.3