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