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