It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 61 401 is not a prime number.
For example, 61 401 can be divided by 3: 61 401 / 3 = 20 467.
Find out more:
For 61 401 to be a prime number, it would have been required that 61 401 has only two divisors, i.e., itself and 1.
Find out more:
61 401 is an odd number, because it is not evenly divisible by 2.
Find out more:
A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 61 401 is about 247.792.
Thus, the square root of 61 401 is not an integer, and therefore 61 401 is not a square number.
The square of a number (here 61 401) is the result of the product of this number (61 401) by itself (i.e., 61 401 × 61 401); the square of 61 401 is sometimes called "raising 61 401 to the power 2", or "61 401 squared".
The square of 61 401 is 3 770 082 801 because 61 401 × 61 401 = 61 4012 = 3 770 082 801.
As a consequence, 61 401 is the square root of 3 770 082 801.
The multiples of 61 401 are all integers evenly divisible by 61 401, that is all numbers such that the remainder of the division by 61 401 is zero. There are infinitely many multiples of 61 401. The smallest multiples of 61 401 are: