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