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