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