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