Is 42142 a prime number?

42 142 is an even number, because it is evenly divisible by 2: 42 142 / 2 = 21 071.

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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 42 142 is about 205.285.

Thus, the square root of 42 142 is not an integer, and therefore 42 142 is not a square number.

The square of a number (here 42 142) is the result of the product of this number (42 142) by itself (i.e., 42 142 × 42 142); the square of 42 142 is sometimes called "raising 42 142 to the power 2", or "42 142 squared".

The square of 42 142 is 1 775 948 164 because 42 142 × 42 142 = 42 142² = 1 775 948 164.

As a consequence, 42 142 is the square root of 1 775 948 164.

42 142 is a number with 5 digits.

The multiples of 42 142 are all integers evenly divisible by 42 142, that is all numbers such that the remainder of the division by 42 142 is zero. There are infinitely many multiples of 42 142. The smallest multiples of 42 142 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 142 too, since 0 × 42 142 = 0
• 42 142: indeed, 42 142 is a multiple of itself, since 42 142 is evenly divisible by 42 142 (we have 42 142 / 42 142 = 1, so the remainder of this division is indeed zero)
• 84 284: indeed, 84 284 = 42 142 × 2
• 126 426: indeed, 126 426 = 42 142 × 3
• 168 568: indeed, 168 568 = 42 142 × 4
• 210 710: indeed, 210 710 = 42 142 × 5
• etc.

• Preceding numbers: …42 140, 42 141
• Following numbers: 42 143, 42 144…

Nearest numbers from 42 142

• Preceding prime number: 42 139
• Following prime number: 42 157

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• 42 142 est-il un nombre premier ?