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