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