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