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