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