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