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