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