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