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