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