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