Is 42042 a prime number?

42 042 is an even number, because it is evenly divisible by 2: 42 042 / 2 = 21 021.

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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 42 042 is about 205.041.

Thus, the square root of 42 042 is not an integer, and therefore 42 042 is not a square number.

The square of a number (here 42 042) is the result of the product of this number (42 042) by itself (i.e., 42 042 × 42 042); the square of 42 042 is sometimes called "raising 42 042 to the power 2", or "42 042 squared".

The square of 42 042 is 1 767 529 764 because 42 042 × 42 042 = 42 042² = 1 767 529 764.

As a consequence, 42 042 is the square root of 1 767 529 764.

42 042 is a number with 5 digits.

The multiples of 42 042 are all integers evenly divisible by 42 042, that is all numbers such that the remainder of the division by 42 042 is zero. There are infinitely many multiples of 42 042. The smallest multiples of 42 042 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 042 too, since 0 × 42 042 = 0
• 42 042: indeed, 42 042 is a multiple of itself, since 42 042 is evenly divisible by 42 042 (we have 42 042 / 42 042 = 1, so the remainder of this division is indeed zero)
• 84 084: indeed, 84 084 = 42 042 × 2
• 126 126: indeed, 126 126 = 42 042 × 3
• 168 168: indeed, 168 168 = 42 042 × 4
• 210 210: indeed, 210 210 = 42 042 × 5
• etc.

• Preceding numbers: …42 040, 42 041
• Following numbers: 42 043, 42 044…

Nearest numbers from 42 042

• Preceding prime number: 42 023
• Following prime number: 42 043

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• 42 042 est-il un nombre premier ?