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