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Factors and Multiples - Coggle Diagram
Factors and Multiples
Divisiblity rule
Divisibility by 2
A number is divisible by 2 if the digit at ones place is divisible by 2. That is if the digit at ones place is 0 , 2, 4, 6, or 8.
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Divisibility by 10
A number is divisible by 10, if the digit at ones place is 0.
Divisibility by 4
A number is Divisible by 4 if the number formed by its digits at tens and ones place is Divisible by 4
Divisibility by 8
A number is divisible by 8 if the number formed by the digits at hundreds, tens and ones place is divisible by 8.
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Divisibility by 9
A number is divisible by 9, if the sum of the digits is divisible by 9
Divisibility by 11
If the difference between the sum of digits at even places and sum of the digits at the odd places is either 0 or a multiple of 11, the number is divisible by 11.
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H.C.F
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Continued Division Method 
L.C.M
Prime Factorisation
factor tree method
Factors -a factor of a number divides the number exactly. ex-the factor of 12 are 1,2,3,4,6,12.
Multiples - For getting multiples of a numberm w recite the multiplication table of that number, e.g., multiples of 4 are 4, 8, 12, 16.
Prime numbers: A number which has only two different factors, 1 and the number itself is called a prime number. e.g., 2, 3, 5, 7.
Composite numbers: A number which has more than two different factors is called composite number. e.g., 4, 6, 8, 9 .....