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