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