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