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