Is 1143 a prime number?

1 143 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 1 143 is about 33.808.

Thus, the square root of 1 143 is not an integer, and therefore 1 143 is not a square number.

The square of a number (here 1 143) is the result of the product of this number (1 143) by itself (i.e., 1 143 × 1 143); the square of 1 143 is sometimes called "raising 1 143 to the power 2", or "1 143 squared".

The square of 1 143 is 1 306 449 because 1 143 × 1 143 = 1 143² = 1 306 449.

As a consequence, 1 143 is the square root of 1 306 449.

1 143 is a number with 4 digits.

The multiples of 1 143 are all integers evenly divisible by 1 143, that is all numbers such that the remainder of the division by 1 143 is zero. There are infinitely many multiples of 1 143. The smallest multiples of 1 143 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 1 143 too, since 0 × 1 143 = 0
• 1 143: indeed, 1 143 is a multiple of itself, since 1 143 is evenly divisible by 1 143 (we have 1 143 / 1 143 = 1, so the remainder of this division is indeed zero)
• 2 286: indeed, 2 286 = 1 143 × 2
• 3 429: indeed, 3 429 = 1 143 × 3
• 4 572: indeed, 4 572 = 1 143 × 4
• 5 715: indeed, 5 715 = 1 143 × 5
• etc.

• Preceding numbers: …1 141, 1 142
• Following numbers: 1 144, 1 145…

Nearest numbers from 1 143

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

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• 1 143 est-il un nombre premier ?