Is 42239 a prime number?

42 239 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 42 239 is about 205.521.

Thus, the square root of 42 239 is not an integer, and therefore 42 239 is not a square number.

Anyway, 42 239 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 42 239) is the result of the product of this number (42 239) by itself (i.e., 42 239 × 42 239); the square of 42 239 is sometimes called "raising 42 239 to the power 2", or "42 239 squared".

The square of 42 239 is 1 784 133 121 because 42 239 × 42 239 = 42 239² = 1 784 133 121.

As a consequence, 42 239 is the square root of 1 784 133 121.

42 239 is a number with 5 digits.

The multiples of 42 239 are all integers evenly divisible by 42 239, that is all numbers such that the remainder of the division by 42 239 is zero. There are infinitely many multiples of 42 239. The smallest multiples of 42 239 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 239 too, since 0 × 42 239 = 0
• 42 239: indeed, 42 239 is a multiple of itself, since 42 239 is evenly divisible by 42 239 (we have 42 239 / 42 239 = 1, so the remainder of this division is indeed zero)
• 84 478: indeed, 84 478 = 42 239 × 2
• 126 717: indeed, 126 717 = 42 239 × 3
• 168 956: indeed, 168 956 = 42 239 × 4
• 211 195: indeed, 211 195 = 42 239 × 5
• etc.

• Preceding numbers: …42 237, 42 238
• Following numbers: 42 240, 42 241…

Nearest numbers from 42 239

• Preceding prime number: 42 227
• Following prime number: 42 257

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• 42 239 est-il un nombre premier ?