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