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