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