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