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