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