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