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