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