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