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