Is 42638 a prime number?

42 638 is an even number, because it is evenly divisible by 2: 42 638 / 2 = 21 319.

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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 42 638 is about 206.490.

Thus, the square root of 42 638 is not an integer, and therefore 42 638 is not a square number.

The square of a number (here 42 638) is the result of the product of this number (42 638) by itself (i.e., 42 638 × 42 638); the square of 42 638 is sometimes called "raising 42 638 to the power 2", or "42 638 squared".

The square of 42 638 is 1 817 999 044 because 42 638 × 42 638 = 42 638² = 1 817 999 044.

As a consequence, 42 638 is the square root of 1 817 999 044.

42 638 is a number with 5 digits.

The multiples of 42 638 are all integers evenly divisible by 42 638, that is all numbers such that the remainder of the division by 42 638 is zero. There are infinitely many multiples of 42 638. The smallest multiples of 42 638 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 638 too, since 0 × 42 638 = 0
• 42 638: indeed, 42 638 is a multiple of itself, since 42 638 is evenly divisible by 42 638 (we have 42 638 / 42 638 = 1, so the remainder of this division is indeed zero)
• 85 276: indeed, 85 276 = 42 638 × 2
• 127 914: indeed, 127 914 = 42 638 × 3
• 170 552: indeed, 170 552 = 42 638 × 4
• 213 190: indeed, 213 190 = 42 638 × 5
• etc.

• Preceding numbers: …42 636, 42 637
• Following numbers: 42 639, 42 640…

Nearest numbers from 42 638

• Preceding prime number: 42 611
• Following prime number: 42 641

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• 42 638 est-il un nombre premier ?