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 {2, 3, 15, 21, 8, 23} → ______
- Prime numbers in {21, 27, 5, 29, 2, 13} → ______
- Prime numbers in {27, 9, 12, 5, 19, 17} → ______
- Prime numbers in {12, 17, 23, 7, 5, 8} → ______
- Prime numbers in {8, 13, 7, 2, 3, 23} → ______
- Prime numbers in {11, 5, 12, 3, 27, 15} → ______
- Prime numbers in {17, 2, 25, 11, 29, 3} → ______
- Prime numbers in {5, 21, 23, 3, 19, 12} → ______
- Prime numbers in {12, 13, 27, 17, 21, 23} → ______
- Prime numbers in {5, 17, 2, 13, 29, 12} → ______
- Prime numbers in {21, 8, 5, 9, 27, 19} → ______
- Prime numbers in {8, 12, 29, 21, 19, 13} → ______
- Prime numbers in {27, 5, 2, 23, 8, 7} → ______
- Prime numbers in {8, 9, 11, 3, 29, 13} → ______
- Prime numbers in {17, 15, 8, 19, 11, 25} → ______
- Prime numbers in {5, 7, 25, 13, 17, 3} → ______
- Prime numbers in {8, 2, 12, 21, 7, 9} → ______
- Prime numbers in {12, 11, 9, 13, 2, 21} → ______
- Prime numbers in {29, 8, 23, 25, 13, 2} → ______
- Prime numbers in {15, 2, 25, 7, 19, 9} → ______