Is 77121 a prime number?

77 121 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 77 121 is about 277.707.

Thus, the square root of 77 121 is not an integer, and therefore 77 121 is not a square number.

The square of a number (here 77 121) is the result of the product of this number (77 121) by itself (i.e., 77 121 × 77 121); the square of 77 121 is sometimes called "raising 77 121 to the power 2", or "77 121 squared".

The square of 77 121 is 5 947 648 641 because 77 121 × 77 121 = 77 121² = 5 947 648 641.

As a consequence, 77 121 is the square root of 5 947 648 641.

77 121 is a number with 5 digits.

The multiples of 77 121 are all integers evenly divisible by 77 121, that is all numbers such that the remainder of the division by 77 121 is zero. There are infinitely many multiples of 77 121. The smallest multiples of 77 121 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 77 121 too, since 0 × 77 121 = 0
• 77 121: indeed, 77 121 is a multiple of itself, since 77 121 is evenly divisible by 77 121 (we have 77 121 / 77 121 = 1, so the remainder of this division is indeed zero)
• 154 242: indeed, 154 242 = 77 121 × 2
• 231 363: indeed, 231 363 = 77 121 × 3
• 308 484: indeed, 308 484 = 77 121 × 4
• 385 605: indeed, 385 605 = 77 121 × 5
• etc.

• Preceding numbers: …77 119, 77 120
• Following numbers: 77 122, 77 123…

Nearest numbers from 77 121

• Preceding prime number: 77 101
• Following prime number: 77 137

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• 77 121 est-il un nombre premier ?