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