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