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