Ontario · Grade 7
G7.B2.6
Grade 7 — Determine the greatest common factor of two whole numbers up to 144, and the lowest common multiple of two or three whole numbers.
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.