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