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