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