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