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