Is 123423 a prime number?

123 423 is an odd number, because it is not evenly divisible by 2.

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• 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 123 423 is about 351.316.

Thus, the square root of 123 423 is not an integer, and therefore 123 423 is not a square number.

The square of a number (here 123 423) is the result of the product of this number (123 423) by itself (i.e., 123 423 × 123 423); the square of 123 423 is sometimes called "raising 123 423 to the power 2", or "123 423 squared".

The square of 123 423 is 15 233 236 929 because 123 423 × 123 423 = 123 423² = 15 233 236 929.

As a consequence, 123 423 is the square root of 15 233 236 929.

123 423 is a number with 6 digits.

The multiples of 123 423 are all integers evenly divisible by 123 423, that is all numbers such that the remainder of the division by 123 423 is zero. There are infinitely many multiples of 123 423. The smallest multiples of 123 423 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 123 423 too, since 0 × 123 423 = 0
• 123 423: indeed, 123 423 is a multiple of itself, since 123 423 is evenly divisible by 123 423 (we have 123 423 / 123 423 = 1, so the remainder of this division is indeed zero)
• 246 846: indeed, 246 846 = 123 423 × 2
• 370 269: indeed, 370 269 = 123 423 × 3
• 493 692: indeed, 493 692 = 123 423 × 4
• 617 115: indeed, 617 115 = 123 423 × 5
• etc.

• Preceding numbers: …123 421, 123 422
• Following numbers: 123 424, 123 425…

Nearest numbers from 123 423

• Preceding prime number: 123 419
• Following prime number: 123 427

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• 123 423 est-il un nombre premier ?