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