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