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