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