Is 42939 a prime number?

42 939 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 42 939 is about 207.217.

Thus, the square root of 42 939 is not an integer, and therefore 42 939 is not a square number.

The square of a number (here 42 939) is the result of the product of this number (42 939) by itself (i.e., 42 939 × 42 939); the square of 42 939 is sometimes called "raising 42 939 to the power 2", or "42 939 squared".

The square of 42 939 is 1 843 757 721 because 42 939 × 42 939 = 42 939² = 1 843 757 721.

As a consequence, 42 939 is the square root of 1 843 757 721.

42 939 is a number with 5 digits.

The multiples of 42 939 are all integers evenly divisible by 42 939, that is all numbers such that the remainder of the division by 42 939 is zero. There are infinitely many multiples of 42 939. The smallest multiples of 42 939 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 939 too, since 0 × 42 939 = 0
• 42 939: indeed, 42 939 is a multiple of itself, since 42 939 is evenly divisible by 42 939 (we have 42 939 / 42 939 = 1, so the remainder of this division is indeed zero)
• 85 878: indeed, 85 878 = 42 939 × 2
• 128 817: indeed, 128 817 = 42 939 × 3
• 171 756: indeed, 171 756 = 42 939 × 4
• 214 695: indeed, 214 695 = 42 939 × 5
• etc.

• Preceding numbers: …42 937, 42 938
• Following numbers: 42 940, 42 941…

Nearest numbers from 42 939

• Preceding prime number: 42 937
• Following prime number: 42 943

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• 42 939 est-il un nombre premier ?