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