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