Question
Which of the following is a prime
number?Solution
429 = 33 
13 So it is not a prime number. 494 = 26 19 So it is not a prime number. 513 = 27 19 So it is not a prime number. 409 is a prime number because it is not divisible by any number except 1 & itself. 737 = 67 11 So it is not a prime number.
- Consider the given question and decide which of the following statements is sufficient to answer the question.
‘N’ is any natural number. When it wi... If we add 1 to the numerator and subtract 1 from the denominator a fraction becomes 1. It becomes 1/4 if we only add 7 to the denominator what is the fr...
If the first term is 125 and the common ratio is 2/5, then what will be the fourth term of the geometric progression (GP)?
If the 4-digit number r76s is exactly divisible by 9, what is the least value of (r + s)?
- Calculate the difference between number of factors and sum of factors of 396.
120 is divided into two parts in such a way that the sixth part of the first part and the seventh part of the second are in the ratio 5 : 6. How much pe...
If the 6-digit number '5a1897' is divisible by '11', determine the value of 'a'.
- Find the greatest value of the expression (p + q), if the number ‘2p618q0’ is divisible by 12.
After swapping its digits, a two-digit number becomes 17 less than 200% of the original number. The sum of the digits is 8. Find the original number.
Which of the following is the greatest number that divides 72 and 119 and leaves 3 and 4 as respective remainders?
