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