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