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