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