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