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