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