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