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