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