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