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