Is 42742 a prime number?

42 742 is an even number, because it is evenly divisible by 2: 42 742 / 2 = 21 371.

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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 42 742 is about 206.741.

Thus, the square root of 42 742 is not an integer, and therefore 42 742 is not a square number.

The square of a number (here 42 742) is the result of the product of this number (42 742) by itself (i.e., 42 742 × 42 742); the square of 42 742 is sometimes called "raising 42 742 to the power 2", or "42 742 squared".

The square of 42 742 is 1 826 878 564 because 42 742 × 42 742 = 42 742² = 1 826 878 564.

As a consequence, 42 742 is the square root of 1 826 878 564.

42 742 is a number with 5 digits.

The multiples of 42 742 are all integers evenly divisible by 42 742, that is all numbers such that the remainder of the division by 42 742 is zero. There are infinitely many multiples of 42 742. The smallest multiples of 42 742 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 742 too, since 0 × 42 742 = 0
• 42 742: indeed, 42 742 is a multiple of itself, since 42 742 is evenly divisible by 42 742 (we have 42 742 / 42 742 = 1, so the remainder of this division is indeed zero)
• 85 484: indeed, 85 484 = 42 742 × 2
• 128 226: indeed, 128 226 = 42 742 × 3
• 170 968: indeed, 170 968 = 42 742 × 4
• 213 710: indeed, 213 710 = 42 742 × 5
• etc.

• Preceding numbers: …42 740, 42 741
• Following numbers: 42 743, 42 744…

Nearest numbers from 42 742

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

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• 42 742 est-il un nombre premier ?