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