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