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