Is 43421 a prime number?

43 421 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 43 421 is about 208.377.

Thus, the square root of 43 421 is not an integer, and therefore 43 421 is not a square number.

The square of a number (here 43 421) is the result of the product of this number (43 421) by itself (i.e., 43 421 × 43 421); the square of 43 421 is sometimes called "raising 43 421 to the power 2", or "43 421 squared".

The square of 43 421 is 1 885 383 241 because 43 421 × 43 421 = 43 421² = 1 885 383 241.

As a consequence, 43 421 is the square root of 1 885 383 241.

43 421 is a number with 5 digits.

The multiples of 43 421 are all integers evenly divisible by 43 421, that is all numbers such that the remainder of the division by 43 421 is zero. There are infinitely many multiples of 43 421. The smallest multiples of 43 421 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 43 421 too, since 0 × 43 421 = 0
• 43 421: indeed, 43 421 is a multiple of itself, since 43 421 is evenly divisible by 43 421 (we have 43 421 / 43 421 = 1, so the remainder of this division is indeed zero)
• 86 842: indeed, 86 842 = 43 421 × 2
• 130 263: indeed, 130 263 = 43 421 × 3
• 173 684: indeed, 173 684 = 43 421 × 4
• 217 105: indeed, 217 105 = 43 421 × 5
• etc.

• Preceding numbers: …43 419, 43 420
• Following numbers: 43 422, 43 423…

Nearest numbers from 43 421

• Preceding prime number: 43 411
• Following prime number: 43 427

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• 43 421 est-il un nombre premier ?