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