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