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