Find the odd number
from the given group
of numbers.
1849, 2601, 2209, 2197, 1521
Answers
Given:
The numbers 1849, 2601, 2209, 1521
To find:
The odd number from the given numbers
Calculation:
From the given numbers, there is a similarity between most of the numbers i.e, most of the numbers are perfect squares
⇒ √1849 = 43 (∴ 1849 is a perfect square)
⇒ √2601 = 51 (∴ 2601 is a perfet square)
⇒ √2209 = 47 (∴ 2209 is a perfect square)
⇒ √2197 = 46.872 (∴ 2197 is not a perfect square)
⇒ √1521 = 39 (∴ 1521 is a perfect square)
From the above calculations, we can se that the given numbers except 2197, all are perfect squares.
The odd number from the given group of numbers is 2197
Given : 1849, 2601, 2209, 2197, 1521
To Find : odd one out
Solution:
1849 = 43²
2601 = 51²
2209 = 47²
2197 = not a perfect square
1521 = 39²
2197 is odd one out as its not a perfect square
all other numbers are perfect square
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