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