Is 42047 a prime number?

42 047 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 42 047 is about 205.054.

Thus, the square root of 42 047 is not an integer, and therefore 42 047 is not a square number.

The square of a number (here 42 047) is the result of the product of this number (42 047) by itself (i.e., 42 047 × 42 047); the square of 42 047 is sometimes called "raising 42 047 to the power 2", or "42 047 squared".

The square of 42 047 is 1 767 950 209 because 42 047 × 42 047 = 42 047² = 1 767 950 209.

As a consequence, 42 047 is the square root of 1 767 950 209.

42 047 is a number with 5 digits.

The multiples of 42 047 are all integers evenly divisible by 42 047, that is all numbers such that the remainder of the division by 42 047 is zero. There are infinitely many multiples of 42 047. The smallest multiples of 42 047 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 047 too, since 0 × 42 047 = 0
• 42 047: indeed, 42 047 is a multiple of itself, since 42 047 is evenly divisible by 42 047 (we have 42 047 / 42 047 = 1, so the remainder of this division is indeed zero)
• 84 094: indeed, 84 094 = 42 047 × 2
• 126 141: indeed, 126 141 = 42 047 × 3
• 168 188: indeed, 168 188 = 42 047 × 4
• 210 235: indeed, 210 235 = 42 047 × 5
• etc.

• Preceding numbers: …42 045, 42 046
• Following numbers: 42 048, 42 049…

Nearest numbers from 42 047

• Preceding prime number: 42 043
• Following prime number: 42 061

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• 42 047 est-il un nombre premier ?