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