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