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