Show model answer and explanation
12
Twelve is in both multiplication lists.
Class 4 · Bangla Version · Mathematics
Factors, multiples and number properties
Explore factors, multiples and number properties with an example and your own answers.
About this lesson and its coverage
Original Kidemy foundation practice · Read the example, write your answers, then check. This starter is shared across class versions; it is not a complete board-specific lesson or course.
Open this topic in Skills Lab →
Learn the idea
A factor divides a number exactly. A multiple is a whole-number product. A prime has exactly two positive factors: one and itself.
Worked example
The positive factors of 12 are 1, 2, 3, 4, 6 and 12. The first multiples of 4 are 4, 8, 12.
- Read the example and explain which rule or evidence it uses.
- Try each task yourself, then compare the answer and its reason.
Your written practice
Show your working on paper. Check your answer, then choose Next.
Show model answer and explanation
6
Six is the largest positive number dividing both.
Show model answer and explanation
11
Eleven has only the positive factors one and eleven.
Take it further
Apply the idea in a new situation and explain your method. Open writing needs a guardian or teacher to review it.
Show model answer and explanation
24
24 is the first positive number in both multiple lists.
Show model answer and explanation
6
Six is the largest positive number dividing both.
Write in your own words. A guardian or teacher should review this response.
Show model answer and explanation
A prime has exactly two positive factors. One has only one positive factor: itself.
Count distinct positive factors.
Progress and browser storage
Notebook challenge, sources and further study
Teacher-led lessons, schedules and prices for this outline are upcoming. You can use any starter practice above now without booking.
Your next step
Solo practice works without an account. Sign in to save a practice record to your learner profile.
Keep practising
Exact lesson links and related activities are labelled separately. Return-to-course links retain your selected learning path.
Play this exact lesson in Skills Lab →