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