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