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