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