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