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