It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 149 402 is not a prime number.
For example, 149 402 can be divided by 2: 149 402 / 2 = 74 701.
For 149 402 to be a prime number, it would have been required that 149 402 has only two divisors, i.e., itself and 1.
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149 402 is an even number, because it is evenly divisible by 2: 149 402 / 2 = 74 701.
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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 149 402 is about 386.526.
Thus, the square root of 149 402 is not an integer, and therefore 149 402 is not a square number.
The square of a number (here 149 402) is the result of the product of this number (149 402) by itself (i.e., 149 402 × 149 402); the square of 149 402 is sometimes called "raising 149 402 to the power 2", or "149 402 squared".
The square of 149 402 is 22 320 957 604 because 149 402 × 149 402 = 149 4022 = 22 320 957 604.
As a consequence, 149 402 is the square root of 22 320 957 604.
The multiples of 149 402 are all integers evenly divisible by 149 402, that is all numbers such that the remainder of the division by 149 402 is zero. There are infinitely many multiples of 149 402. The smallest multiples of 149 402 are: