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