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