Question

Find the least number which must be added to the number 2252 to make them a perfect square.

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Answer 1

Answer:

40

Step-by-step explanation:

Find the LCM of 7, 15 and 21

7 = 7

15 = 3 x 5

21 = 3 x 7

LCM = 3 x 5 x 7 = 105

Find the remainder when 2252 is divided by 105:

2252 ÷ 105 = 2205 Remainder 47

Find the remainder to subtract:

Remainder = 47

Remainder we want = 7 (Given)

Difference = 47 - 7 = 40