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