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