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