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