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