Is 1142 a prime number?

1 142 is an even number, because it is evenly divisible by 2: 1 142 / 2 = 571.

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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 1 142 is about 33.793.

Thus, the square root of 1 142 is not an integer, and therefore 1 142 is not a square number.

The square of a number (here 1 142) is the result of the product of this number (1 142) by itself (i.e., 1 142 × 1 142); the square of 1 142 is sometimes called "raising 1 142 to the power 2", or "1 142 squared".

The square of 1 142 is 1 304 164 because 1 142 × 1 142 = 1 142² = 1 304 164.

As a consequence, 1 142 is the square root of 1 304 164.

1 142 is a number with 4 digits.

The multiples of 1 142 are all integers evenly divisible by 1 142, that is all numbers such that the remainder of the division by 1 142 is zero. There are infinitely many multiples of 1 142. The smallest multiples of 1 142 are:

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

• Preceding numbers: …1 140, 1 141
• Following numbers: 1 143, 1 144…

Nearest numbers from 1 142

• Preceding prime number: 1 129
• Following prime number: 1 151

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• 1 142 est-il un nombre premier ?