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