It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 137 802 is not a prime number.
For example, 137 802 can be divided by 2: 137 802 / 2 = 68 901.
For 137 802 to be a prime number, it would have been required that 137 802 has only two divisors, i.e., itself and 1.
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137 802 is an even number, because it is evenly divisible by 2: 137 802 / 2 = 68 901.
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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 137 802 is about 371.217.
Thus, the square root of 137 802 is not an integer, and therefore 137 802 is not a square number.
The square of a number (here 137 802) is the result of the product of this number (137 802) by itself (i.e., 137 802 × 137 802); the square of 137 802 is sometimes called "raising 137 802 to the power 2", or "137 802 squared".
The square of 137 802 is 18 989 391 204 because 137 802 × 137 802 = 137 8022 = 18 989 391 204.
As a consequence, 137 802 is the square root of 18 989 391 204.
The multiples of 137 802 are all integers evenly divisible by 137 802, that is all numbers such that the remainder of the division by 137 802 is zero. There are infinitely many multiples of 137 802. The smallest multiples of 137 802 are: