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