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