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