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