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