Is 12409 a prime number?

12 409 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 12 409 is about 111.396.

Thus, the square root of 12 409 is not an integer, and therefore 12 409 is not a square number.

Anyway, 12 409 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 12 409) is the result of the product of this number (12 409) by itself (i.e., 12 409 × 12 409); the square of 12 409 is sometimes called "raising 12 409 to the power 2", or "12 409 squared".

The square of 12 409 is 153 983 281 because 12 409 × 12 409 = 12 409² = 153 983 281.

As a consequence, 12 409 is the square root of 153 983 281.

12 409 is a number with 5 digits.

The multiples of 12 409 are all integers evenly divisible by 12 409, that is all numbers such that the remainder of the division by 12 409 is zero. There are infinitely many multiples of 12 409. The smallest multiples of 12 409 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 12 409 too, since 0 × 12 409 = 0
• 12 409: indeed, 12 409 is a multiple of itself, since 12 409 is evenly divisible by 12 409 (we have 12 409 / 12 409 = 1, so the remainder of this division is indeed zero)
• 24 818: indeed, 24 818 = 12 409 × 2
• 37 227: indeed, 37 227 = 12 409 × 3
• 49 636: indeed, 49 636 = 12 409 × 4
• 62 045: indeed, 62 045 = 12 409 × 5
• etc.

• Preceding numbers: …12 407, 12 408
• Following numbers: 12 410, 12 411…

Nearest numbers from 12 409

• Preceding prime number: 12 401
• Following prime number: 12 413

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• 12 409 est-il un nombre premier ?