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