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