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