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