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