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