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