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