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