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