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