Is 121987 a prime number?

121 987 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 121 987 is about 349.266.

Thus, the square root of 121 987 is not an integer, and therefore 121 987 is not a square number.

The square of a number (here 121 987) is the result of the product of this number (121 987) by itself (i.e., 121 987 × 121 987); the square of 121 987 is sometimes called "raising 121 987 to the power 2", or "121 987 squared".

The square of 121 987 is 14 880 828 169 because 121 987 × 121 987 = 121 987² = 14 880 828 169.

As a consequence, 121 987 is the square root of 14 880 828 169.

121 987 is a number with 6 digits.

The multiples of 121 987 are all integers evenly divisible by 121 987, that is all numbers such that the remainder of the division by 121 987 is zero. There are infinitely many multiples of 121 987. The smallest multiples of 121 987 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 121 987 too, since 0 × 121 987 = 0
• 121 987: indeed, 121 987 is a multiple of itself, since 121 987 is evenly divisible by 121 987 (we have 121 987 / 121 987 = 1, so the remainder of this division is indeed zero)
• 243 974: indeed, 243 974 = 121 987 × 2
• 365 961: indeed, 365 961 = 121 987 × 3
• 487 948: indeed, 487 948 = 121 987 × 4
• 609 935: indeed, 609 935 = 121 987 × 5
• etc.

• Preceding numbers: …121 985, 121 986
• Following numbers: 121 988, 121 989…

Nearest numbers from 121 987

• Preceding prime number: 121 967
• Following prime number: 121 993