Is 42440 a prime number?

42 440 is an even number, because it is evenly divisible by 2: 42 440 / 2 = 21 220.

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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 42 440 is about 206.010.

Thus, the square root of 42 440 is not an integer, and therefore 42 440 is not a square number.

The square of a number (here 42 440) is the result of the product of this number (42 440) by itself (i.e., 42 440 × 42 440); the square of 42 440 is sometimes called "raising 42 440 to the power 2", or "42 440 squared".

The square of 42 440 is 1 801 153 600 because 42 440 × 42 440 = 42 440² = 1 801 153 600.

As a consequence, 42 440 is the square root of 1 801 153 600.

42 440 is a number with 5 digits.

The multiples of 42 440 are all integers evenly divisible by 42 440, that is all numbers such that the remainder of the division by 42 440 is zero. There are infinitely many multiples of 42 440. The smallest multiples of 42 440 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 440 too, since 0 × 42 440 = 0
• 42 440: indeed, 42 440 is a multiple of itself, since 42 440 is evenly divisible by 42 440 (we have 42 440 / 42 440 = 1, so the remainder of this division is indeed zero)
• 84 880: indeed, 84 880 = 42 440 × 2
• 127 320: indeed, 127 320 = 42 440 × 3
• 169 760: indeed, 169 760 = 42 440 × 4
• 212 200: indeed, 212 200 = 42 440 × 5
• etc.

• Preceding numbers: …42 438, 42 439
• Following numbers: 42 441, 42 442…

Nearest numbers from 42 440

• Preceding prime number: 42 437
• Following prime number: 42 443

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• 42 440 est-il un nombre premier ?