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