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