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