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