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