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