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