Is 1680 a prime number?

1 680 is an even number, because it is evenly divisible by 2: 1 680 / 2 = 840.

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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 1 680 is about 40.988.

Thus, the square root of 1 680 is not an integer, and therefore 1 680 is not a square number.

The square of a number (here 1 680) is the result of the product of this number (1 680) by itself (i.e., 1 680 × 1 680); the square of 1 680 is sometimes called "raising 1 680 to the power 2", or "1 680 squared".

The square of 1 680 is 2 822 400 because 1 680 × 1 680 = 1 680² = 2 822 400.

As a consequence, 1 680 is the square root of 2 822 400.

1 680 is a number with 4 digits.

The multiples of 1 680 are all integers evenly divisible by 1 680, that is all numbers such that the remainder of the division by 1 680 is zero. There are infinitely many multiples of 1 680. The smallest multiples of 1 680 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 1 680 too, since 0 × 1 680 = 0
• 1 680: indeed, 1 680 is a multiple of itself, since 1 680 is evenly divisible by 1 680 (we have 1 680 / 1 680 = 1, so the remainder of this division is indeed zero)
• 3 360: indeed, 3 360 = 1 680 × 2
• 5 040: indeed, 5 040 = 1 680 × 3
• 6 720: indeed, 6 720 = 1 680 × 4
• 8 400: indeed, 8 400 = 1 680 × 5
• etc.

• Preceding numbers: …1 678, 1 679
• Following numbers: 1 681, 1 682…

Nearest numbers from 1 680

• Preceding prime number: 1 669
• Following prime number: 1 693

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• 1 680 est-il un nombre premier ?