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