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