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