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