Question

find the least number to be subtracted from 531990 to get a perfact are square
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Answer 1

Answer:

549 to be subtracted from 531990 to get a perfact are square

531990-549=531441

531441 is square of 729

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Answer 2

Answer:

thank you

Step-by-step explanation:

we know ,

• 729^2 = 531441 < 531990
• 730^2 = 532900 > 531990

let 'x' be substracted from 531990

then,

• x + 729^ 2 = 531990
• x = 531990 - 531441
• x = 549

therefore, 549 is substracted from 531990 making it a perfect square.