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