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