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