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