It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 155 013 004 is not a prime number.
For example, 155 013 004 can be divided by 2: 155 013 004 / 2 = 77 506 502.
For 155 013 004 to be a prime number, it would have been required that 155 013 004 has only two divisors, i.e., itself and 1.
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155 013 004 is an even number, because it is evenly divisible by 2: 155 013 004 / 2 = 77 506 502.
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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 155 013 004 is about 12 450.422.
Thus, the square root of 155 013 004 is not an integer, and therefore 155 013 004 is not a square number.
The square of a number (here 155 013 004) is the result of the product of this number (155 013 004) by itself (i.e., 155 013 004 × 155 013 004); the square of 155 013 004 is sometimes called "raising 155 013 004 to the power 2", or "155 013 004 squared".
The square of 155 013 004 is 24 029 031 409 104 016 because 155 013 004 × 155 013 004 = 155 013 0042 = 24 029 031 409 104 016.
As a consequence, 155 013 004 is the square root of 24 029 031 409 104 016.
155 013 004 is a number with 9 digits.
The multiples of 155 013 004 are all integers evenly divisible by 155 013 004, that is all numbers such that the remainder of the division by 155 013 004 is zero. There are infinitely many multiples of 155 013 004. The smallest multiples of 155 013 004 are: