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