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