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