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