Question

Find the smallest number by which each of the following number should be multiplied to get perfect square : 1,280

Answer 1

Answer:

1.280 = 128 * 10 = 10^7*2*5 = 10^8*5. To be a perfect square, you need an even number of copies of every prime factor. So you need another 5. 1280 * 5= 6400 =80^2

Step-by-step

pls follow me and give me lots of thanks