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