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