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