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