Is 1990 a prime number?

1 990 is an even number, because it is evenly divisible by 2: 1 990 / 2 = 995.

Find out more:

• 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 1 990 is about 44.609.

Thus, the square root of 1 990 is not an integer, and therefore 1 990 is not a square number.

The square of a number (here 1 990) is the result of the product of this number (1 990) by itself (i.e., 1 990 × 1 990); the square of 1 990 is sometimes called "raising 1 990 to the power 2", or "1 990 squared".

The square of 1 990 is 3 960 100 because 1 990 × 1 990 = 1 990² = 3 960 100.

As a consequence, 1 990 is the square root of 3 960 100.

1 990 is a number with 4 digits.

The multiples of 1 990 are all integers evenly divisible by 1 990, that is all numbers such that the remainder of the division by 1 990 is zero. There are infinitely many multiples of 1 990. The smallest multiples of 1 990 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 1 990 too, since 0 × 1 990 = 0
• 1 990: indeed, 1 990 is a multiple of itself, since 1 990 is evenly divisible by 1 990 (we have 1 990 / 1 990 = 1, so the remainder of this division is indeed zero)
• 3 980: indeed, 3 980 = 1 990 × 2
• 5 970: indeed, 5 970 = 1 990 × 3
• 7 960: indeed, 7 960 = 1 990 × 4
• 9 950: indeed, 9 950 = 1 990 × 5
• etc.

• Preceding numbers: …1 988, 1 989
• Following numbers: 1 991, 1 992…

Nearest numbers from 1 990

• Preceding prime number: 1 987
• Following prime number: 1 993

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• 1 990 est-il un nombre premier ?