Q: Is 121,550 a Prime Number?

 A: No, 121,550 is not a prime number.

Why is 121,550 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 121550 can be evenly divided by 1 2 5 10 11 13 17 22 25 26 34 50 55 65 85 110 130 143 170 187 221 275 286 325 374 425 442 550 650 715 850 935 1,105 1,430 1,870 2,210 2,431 3,575 4,675 4,862 5,525 7,150 9,350 11,050 12,155 24,310 60,775 and 121,550, with no remainder.

Since 121,550 cannot be divided by just 1 and 121,550, it is not a prime number.


More Examples

Number 121,548121,549121,551121,552
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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