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