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