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