Question

Q.7. Find the square root of 400 by the Prime Factorisation Method.​

Answer 1

Answer:

$\sqrt{400} = 20$

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Answer 2

Step-by-step explanation:

400-1=399

399-3=396

396-5=391

391-7=384

384-9=375

375-11=364

364-13=351

351-15=336

336-17=319

319-19=300

300-21=279

279-23=256

256-25=231

231-27=204

204-29=175

175-31=144

144-33=111

111-35=76

76-37=39

39-39=0