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