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