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