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