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