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