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