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