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