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