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