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