Is 31131 a prime number?

31 131 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 31 131 is about 176.440.

Thus, the square root of 31 131 is not an integer, and therefore 31 131 is not a square number.

The square of a number (here 31 131) is the result of the product of this number (31 131) by itself (i.e., 31 131 × 31 131); the square of 31 131 is sometimes called "raising 31 131 to the power 2", or "31 131 squared".

The square of 31 131 is 969 139 161 because 31 131 × 31 131 = 31 131² = 969 139 161.

As a consequence, 31 131 is the square root of 969 139 161.

31 131 is a number with 5 digits.

The multiples of 31 131 are all integers evenly divisible by 31 131, that is all numbers such that the remainder of the division by 31 131 is zero. There are infinitely many multiples of 31 131. The smallest multiples of 31 131 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 31 131 too, since 0 × 31 131 = 0
• 31 131: indeed, 31 131 is a multiple of itself, since 31 131 is evenly divisible by 31 131 (we have 31 131 / 31 131 = 1, so the remainder of this division is indeed zero)
• 62 262: indeed, 62 262 = 31 131 × 2
• 93 393: indeed, 93 393 = 31 131 × 3
• 124 524: indeed, 124 524 = 31 131 × 4
• 155 655: indeed, 155 655 = 31 131 × 5
• etc.

• Preceding numbers: …31 129, 31 130
• Following numbers: 31 132, 31 133…

Nearest numbers from 31 131

• Preceding prime number: 31 123
• Following prime number: 31 139

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• 31 131 est-il un nombre premier ?