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