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