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