Question

3 Choose the suitable pair of co-prime factors given below in the box an
test the divisibility of the following numbers.
( 9 and 5 3 and 5 4 and 9 5 and 8 )
(a) 56340 by 36

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Answer 1

Answer:

divisible by 2

Step-by-step explanation:

Answer 2

Answer:

56340 by 36

4 and 9 are co-prime factors of 36

pair 4 and 9 will be suitable for it as 4*9 =36

Step-by-step explanation:

step 1

check divisibility by 4

Rule : If last two digits of a number are divisible by 4 then the number is divisible by 4.

In 56340 last two digits are 40 which are divisible by 4. so the number 56340 is also divisible by 4.

step 2

check divisibility by 9

Rule: If the sum of all digits of a number is divisible by 9 then the number is divisible by 9.

56340= 5+6+3+4+0=18

18  is divisible by 9 so the number 56340 is also divisible by 9.

So this is divisible by 36