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