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