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