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