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