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