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