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