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