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