Is 42740 a prime number?

42 740 is an even number, because it is evenly divisible by 2: 42 740 / 2 = 21 370.

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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 42 740 is about 206.737.

Thus, the square root of 42 740 is not an integer, and therefore 42 740 is not a square number.

The square of a number (here 42 740) is the result of the product of this number (42 740) by itself (i.e., 42 740 × 42 740); the square of 42 740 is sometimes called "raising 42 740 to the power 2", or "42 740 squared".

The square of 42 740 is 1 826 707 600 because 42 740 × 42 740 = 42 740² = 1 826 707 600.

As a consequence, 42 740 is the square root of 1 826 707 600.

42 740 is a number with 5 digits.

The multiples of 42 740 are all integers evenly divisible by 42 740, that is all numbers such that the remainder of the division by 42 740 is zero. There are infinitely many multiples of 42 740. The smallest multiples of 42 740 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 740 too, since 0 × 42 740 = 0
• 42 740: indeed, 42 740 is a multiple of itself, since 42 740 is evenly divisible by 42 740 (we have 42 740 / 42 740 = 1, so the remainder of this division is indeed zero)
• 85 480: indeed, 85 480 = 42 740 × 2
• 128 220: indeed, 128 220 = 42 740 × 3
• 170 960: indeed, 170 960 = 42 740 × 4
• 213 700: indeed, 213 700 = 42 740 × 5
• etc.

• Preceding numbers: …42 738, 42 739
• Following numbers: 42 741, 42 742…

Nearest numbers from 42 740

• Preceding prime number: 42 737
• Following prime number: 42 743

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• 42 740 est-il un nombre premier ?