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