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