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