Is 123129 a prime number?

123 129 is an odd number, because it is not evenly divisible by 2.

Find out more:

• What is an even number?

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 123 129 is about 350.897.

Thus, the square root of 123 129 is not an integer, and therefore 123 129 is not a square number.

The square of a number (here 123 129) is the result of the product of this number (123 129) by itself (i.e., 123 129 × 123 129); the square of 123 129 is sometimes called "raising 123 129 to the power 2", or "123 129 squared".

The square of 123 129 is 15 160 750 641 because 123 129 × 123 129 = 123 129² = 15 160 750 641.

As a consequence, 123 129 is the square root of 15 160 750 641.

123 129 is a number with 6 digits.

The multiples of 123 129 are all integers evenly divisible by 123 129, that is all numbers such that the remainder of the division by 123 129 is zero. There are infinitely many multiples of 123 129. The smallest multiples of 123 129 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 123 129 too, since 0 × 123 129 = 0
• 123 129: indeed, 123 129 is a multiple of itself, since 123 129 is evenly divisible by 123 129 (we have 123 129 / 123 129 = 1, so the remainder of this division is indeed zero)
• 246 258: indeed, 246 258 = 123 129 × 2
• 369 387: indeed, 369 387 = 123 129 × 3
• 492 516: indeed, 492 516 = 123 129 × 4
• 615 645: indeed, 615 645 = 123 129 × 5
• etc.

• Preceding numbers: …123 127, 123 128
• Following numbers: 123 130, 123 131…

Nearest numbers from 123 129

• Preceding prime number: 123 127
• Following prime number: 123 143

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• 123 129 est-il un nombre premier ?