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