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