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