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