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