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