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