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