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