Name: _____________________
Prime & Composite Numbers
Directions: Write the letter in the blank that matches the word with the correct definition
1. A is a number that you multiply with another number
to get a product.
2. A number is a number with only 2 factors
3. A is the answer to a multiplication problem
4. A number is a number with more than two factors
5. A number is by 2 if it is even.
a. divisible b. prime c. factor d. product e. composite
Directions: Write all the Prime Numbers from 1-100 (Rap Song)
, , , , , , , , , and , these are
prime, can’t you see? , and , , and , , and
, these are prime with . , and , , and , , and
, , and ! Whoo-hoo!
Directions: List all the factors of the number, then tell if its prime or composite.
● 27
● 38
● 19
● 33
● 45
Directions: Match the number with its divisibility rule.
1.
A number is divisible by , if it is even (ends in 2, 4, 6, 8, 0).
2. A number is divisible by , if it ends in 0.
A number is divisible by , if the sum of the digits is a multiple
3. of 3 (33, 3+3=6, 6 is a multiple of 3).
A number is divisible by , if it ends in 5 or 0.
A number is divisible by , if the sum of the digits is a multiple
4.
of 9 (81, 8+1=9, 9 is a multiple of 9).
A number is divisible by , if it is divisible by both 2 and 3.
5.
6.
2 3 5
6 9 10
KEY KEY KEY KEY KEY KEY KEY KEY KEY KEY KEY KEY KEY KEY KEY KEY KEY KEY
Prime & Composite Numbers
Directions: Write the letter in the blank that matches the word with the correct
definition
2. C A is a number that you multiply with another
number to get a product.
2. B A number is a number with only 2 factors
3. D A is the answer to a multiplication problem
4. E A number is a number with more than two factors
5. A A number is by 2 if it is even.
a. divisible b. prime c. factor d. product e. composite
Directions: Write all the Prime Numbers from 1-100 (sung to the tune of “Oh, My
Darlin’”)
2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 and 29, these
are prime, can’t you see? 31 , and 37 , 41 , and 43 , 47 , and
53 , these are prime with 59 . 61 , and 67 , 71 , and 73 , 79 ,
and 83 , 89 , and 97 ! Whoo-hoo!
Directions: List all the factors of the number, then tell if its prime or composite.
● 27 - 1, 3, 9, 27; Composite
● 38 - 1, 2, 19, 38; Composite
● 19 - 1, 19; Prime
● 33 - 1, 3, 11, 33; Composite
● 45 - 1, 3, 5, 9, 15, 45; Composite
Directions: Match the number with its divisibility rule.
1. 2 A number is divisible by , if it is even (ends in 2, 4, 6, 8, 0).
2. 10 A number is divisible by , if it ends in 0.
3. 3 A number is divisible by , if the sum of the digits is a multiple
of 3 (33, 3+3=6, 6 is a multiple of 3).
4. 5 A number is divisible by , if it ends in 5 or 0.
5. 9 A number is divisible by , if the sum of the digits is a multiple
of 9 (81, 8+1=9, 9 is a multiple of 9).
6. 6 A number is divisible by , if it is divisible by both 2 and 3.
2 3 5
6 9 10
