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