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