Is 8423 a prime number?

8 423 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 8 423 is about 91.777.

Thus, the square root of 8 423 is not an integer, and therefore 8 423 is not a square number.

Anyway, 8 423 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 8 423) is the result of the product of this number (8 423) by itself (i.e., 8 423 × 8 423); the square of 8 423 is sometimes called "raising 8 423 to the power 2", or "8 423 squared".

The square of 8 423 is 70 946 929 because 8 423 × 8 423 = 8 423² = 70 946 929.

As a consequence, 8 423 is the square root of 70 946 929.

8 423 is a number with 4 digits.

The multiples of 8 423 are all integers evenly divisible by 8 423, that is all numbers such that the remainder of the division by 8 423 is zero. There are infinitely many multiples of 8 423. The smallest multiples of 8 423 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 8 423 too, since 0 × 8 423 = 0
• 8 423: indeed, 8 423 is a multiple of itself, since 8 423 is evenly divisible by 8 423 (we have 8 423 / 8 423 = 1, so the remainder of this division is indeed zero)
• 16 846: indeed, 16 846 = 8 423 × 2
• 25 269: indeed, 25 269 = 8 423 × 3
• 33 692: indeed, 33 692 = 8 423 × 4
• 42 115: indeed, 42 115 = 8 423 × 5
• etc.

• Preceding numbers: …8 421, 8 422
• Following numbers: 8 424, 8 425…

Nearest numbers from 8 423

• Preceding prime number: 8 419
• Following prime number: 8 429

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• 8 423 est-il un nombre premier ?