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