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