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