Common Core · Grade 4
4.OA.B.4
Grade 4 — Find all factor pairs of a whole number and decide whether it is prime or composite.
The skill that covers it
What a student should be able to do
- List all factors of a number and decide whether it is prime.
- Write the prime factorisation of a number.
- Find the greatest common factor of two numbers.
- Find the least common multiple of two numbers.