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