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