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