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