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