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