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