Is 123109 a prime number?

123 109 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 123 109 is about 350.869.

Thus, the square root of 123 109 is not an integer, and therefore 123 109 is not a square number.

The square of a number (here 123 109) is the result of the product of this number (123 109) by itself (i.e., 123 109 × 123 109); the square of 123 109 is sometimes called "raising 123 109 to the power 2", or "123 109 squared".

The square of 123 109 is 15 155 825 881 because 123 109 × 123 109 = 123 109² = 15 155 825 881.

As a consequence, 123 109 is the square root of 15 155 825 881.

123 109 is a number with 6 digits.

The multiples of 123 109 are all integers evenly divisible by 123 109, that is all numbers such that the remainder of the division by 123 109 is zero. There are infinitely many multiples of 123 109. The smallest multiples of 123 109 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 123 109 too, since 0 × 123 109 = 0
• 123 109: indeed, 123 109 is a multiple of itself, since 123 109 is evenly divisible by 123 109 (we have 123 109 / 123 109 = 1, so the remainder of this division is indeed zero)
• 246 218: indeed, 246 218 = 123 109 × 2
• 369 327: indeed, 369 327 = 123 109 × 3
• 492 436: indeed, 492 436 = 123 109 × 4
• 615 545: indeed, 615 545 = 123 109 × 5
• etc.

• Preceding numbers: …123 107, 123 108
• Following numbers: 123 110, 123 111…

Nearest numbers from 123 109

• Preceding prime number: 123 091
• Following prime number: 123 113

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• 123 109 est-il un nombre premier ?