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