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