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