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