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