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