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