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