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