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