Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {21, 12, 5, 7, 25, 2} → ______
- Prime numbers in {12, 27, 7, 21, 8, 5} → ______
- Prime numbers in {12, 3, 27, 21, 15, 7} → ______
- Prime numbers in {25, 23, 15, 29, 19, 9} → ______
- Prime numbers in {12, 27, 29, 8, 11, 19} → ______
- Prime numbers in {2, 7, 8, 12, 21, 3} → ______
- Prime numbers in {11, 15, 8, 23, 9, 5} → ______
- Prime numbers in {3, 7, 5, 23, 17, 11} → ______
- Prime numbers in {29, 17, 12, 2, 3, 23} → ______
- Prime numbers in {11, 8, 23, 25, 29, 2} → ______
- Prime numbers in {7, 3, 5, 19, 2, 27} → ______
- Prime numbers in {29, 3, 8, 2, 19, 25} → ______
- Prime numbers in {8, 27, 9, 29, 21, 17} → ______
- Prime numbers in {9, 13, 25, 23, 15, 11} → ______
- Prime numbers in {17, 5, 27, 15, 21, 23} → ______
- Prime numbers in {13, 29, 5, 7, 9, 11} → ______
- Prime numbers in {21, 5, 12, 7, 27, 23} → ______
- Prime numbers in {12, 13, 8, 29, 19, 25} → ______
- Prime numbers in {3, 27, 17, 5, 12, 25} → ______
- Prime numbers in {12, 3, 9, 19, 27, 11} → ______