Question

(a) A number is divisible by 6 if it is divisible by its two co-prime factors -
and
(b) 43185 is divisible by 15 as it is divisible by and
(c) The number 8625 is not divisible by 6 as it is divisible by but not by
and
The number 54420 is divisible by 12 as it is divisible by
(e) The number 781022 is divisible by 11 as the difference of the sum of the digits
at odd places and the sum of the digits at even places is​

Answer 1

Step-by-step explanation:

(a) 2 and 3

(b) 3 and 15

(c)divisible by 3 but not by 2

(d) 3 and 4

(e) 0

Answer 2

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