Question

Find the smallest number by which 1890 must be multiplied so that the product becomes perfect square​

Answer 1

Answer:

210

Step-by-step explanation:

1890 can be written as

= 2 x 945

= 2 x 3 x 315

= 2 x 3 x 3 x 105

= 2 x 3 x 3 x 3 x 35

= 2 x 3 x 3 x 3 x 5 x 7

We can see that 2,3,5,7 are not having the pairs

So in order to make 1890 to perfect square, we have to multiply with 2 x 3 x 5 x 7

is 1890 x 2 x 3 x 5 x 7

= 1890 x 210

= 396900

Answer 2

Answer:

hey friend get your answer and please follow me

Step-by-step explanation:

1820 divided by 2 is 945 which on divided by 5 we get 189which on divided by 3 we get 63 which on divided by 3 we get 21 which on divided by 3 we get 7 and on dividing it by 7 we get 1. So the smallest number by which 1890 must be multiplied is 2.