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