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