Advertisements
Advertisements
Question
Write the possible unit's digit of the square root of the following number. Which of these number is odd square root?
657666025
Advertisements
Solution
The unit digit of the number 657666025 is 5. So, the only possible unit digit is 5. Note that 657666025 is equal to (5 x 23 x 223)2. Hence, the square root is an odd number.
APPEARS IN
RELATED QUESTIONS
Find the square root of the following number by division method.
1024
Find the number of digits in the square root of the following numbers (without any calculation).
144
Find the number of digits in the square root of the following numbers (without any calculation).
390625
Find the least number which must be subtracted from the following number so as to get a perfect square. Also find the square root of the perfect square so obtained.
3250
Find the square of the following numbers using the identity (a + b)2 = a2 + 2ab + b2:
209
Find the square of the following number by visual method:
702
Write the possible unit's digits of the square root of the following number. Which of these number is odd square root?
99856
Find the square root the following by long division method:
1471369
Find the square root of 7 correct to two decimal places; then use it to find the value of `sqrt((4+sqrt(7))/(4-sqrt(7)` correct to three significant digits.
By what smallest number should 216 be divided so that the quotient is a perfect square. Also find the square root of the quotient.
