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