Is 42523 a prime number?

42 523 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 42 523 is about 206.211.

Thus, the square root of 42 523 is not an integer, and therefore 42 523 is not a square number.

The square of a number (here 42 523) is the result of the product of this number (42 523) by itself (i.e., 42 523 × 42 523); the square of 42 523 is sometimes called "raising 42 523 to the power 2", or "42 523 squared".

The square of 42 523 is 1 808 205 529 because 42 523 × 42 523 = 42 523² = 1 808 205 529.

As a consequence, 42 523 is the square root of 1 808 205 529.

42 523 is a number with 5 digits.

The multiples of 42 523 are all integers evenly divisible by 42 523, that is all numbers such that the remainder of the division by 42 523 is zero. There are infinitely many multiples of 42 523. The smallest multiples of 42 523 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 523 too, since 0 × 42 523 = 0
• 42 523: indeed, 42 523 is a multiple of itself, since 42 523 is evenly divisible by 42 523 (we have 42 523 / 42 523 = 1, so the remainder of this division is indeed zero)
• 85 046: indeed, 85 046 = 42 523 × 2
• 127 569: indeed, 127 569 = 42 523 × 3
• 170 092: indeed, 170 092 = 42 523 × 4
• 212 615: indeed, 212 615 = 42 523 × 5
• etc.

• Preceding numbers: …42 521, 42 522
• Following numbers: 42 524, 42 525…

Nearest numbers from 42 523

• Preceding prime number: 42 509
• Following prime number: 42 533

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• 42 523 est-il un nombre premier ?