Grade 7 · Numbers & Operations

Factors & multiples

79 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

Warm-up
Find the greatest common factor (GCF) of $20$ and $35$ .
Warm-up
Find the greatest common factor (GCF) of $22$ and $99$ .
Warm-up
Find the greatest common factor (GCF) of $6$ and $8$ .

Problems shown under their original terms: Generated (template, solver-computed).

Practice this free, right now

Unlimited math practice is on the free plan — no card, no trial clock.

Practice free Log in and practise this skill

See every Numbers & Operations skill for grade 7