Is 1355 a prime number?

1 355 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 1 355 is about 36.810.

Thus, the square root of 1 355 is not an integer, and therefore 1 355 is not a square number.

The square of a number (here 1 355) is the result of the product of this number (1 355) by itself (i.e., 1 355 × 1 355); the square of 1 355 is sometimes called "raising 1 355 to the power 2", or "1 355 squared".

The square of 1 355 is 1 836 025 because 1 355 × 1 355 = 1 355² = 1 836 025.

As a consequence, 1 355 is the square root of 1 836 025.

1 355 is a number with 4 digits.

The multiples of 1 355 are all integers evenly divisible by 1 355, that is all numbers such that the remainder of the division by 1 355 is zero. There are infinitely many multiples of 1 355. The smallest multiples of 1 355 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 1 355 too, since 0 × 1 355 = 0
• 1 355: indeed, 1 355 is a multiple of itself, since 1 355 is evenly divisible by 1 355 (we have 1 355 / 1 355 = 1, so the remainder of this division is indeed zero)
• 2 710: indeed, 2 710 = 1 355 × 2
• 4 065: indeed, 4 065 = 1 355 × 3
• 5 420: indeed, 5 420 = 1 355 × 4
• 6 775: indeed, 6 775 = 1 355 × 5
• etc.

• Preceding numbers: …1 353, 1 354
• Following numbers: 1 356, 1 357…

Nearest numbers from 1 355

• Preceding prime number: 1 327
• Following prime number: 1 361

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• 1 355 est-il un nombre premier ?