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