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