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