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