Is 7980 a prime number?

7 980 is an even number, because it is evenly divisible by 2: 7 980 / 2 = 3 990.

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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 7 980 is about 89.331.

Thus, the square root of 7 980 is not an integer, and therefore 7 980 is not a square number.

The square of a number (here 7 980) is the result of the product of this number (7 980) by itself (i.e., 7 980 × 7 980); the square of 7 980 is sometimes called "raising 7 980 to the power 2", or "7 980 squared".

The square of 7 980 is 63 680 400 because 7 980 × 7 980 = 7 980² = 63 680 400.

As a consequence, 7 980 is the square root of 63 680 400.

7 980 is a number with 4 digits.

The multiples of 7 980 are all integers evenly divisible by 7 980, that is all numbers such that the remainder of the division by 7 980 is zero. There are infinitely many multiples of 7 980. The smallest multiples of 7 980 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 7 980 too, since 0 × 7 980 = 0
• 7 980: indeed, 7 980 is a multiple of itself, since 7 980 is evenly divisible by 7 980 (we have 7 980 / 7 980 = 1, so the remainder of this division is indeed zero)
• 15 960: indeed, 15 960 = 7 980 × 2
• 23 940: indeed, 23 940 = 7 980 × 3
• 31 920: indeed, 31 920 = 7 980 × 4
• 39 900: indeed, 39 900 = 7 980 × 5
• etc.

• Preceding numbers: …7 978, 7 979
• Following numbers: 7 981, 7 982…

Nearest numbers from 7 980

• Preceding prime number: 7 963
• Following prime number: 7 993

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• 7 980 est-il un nombre premier ?