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