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