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