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