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