Q: Is 1,555,000 a Prime Number?

 A: No, 1,555,000 is not a prime number.

Why is 1,555,000 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 1555000 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 125 200 250 311 500 622 625 1,000 1,244 1,250 1,555 2,488 2,500 3,110 5,000 6,220 7,775 12,440 15,550 31,100 38,875 62,200 77,750 155,500 194,375 311,000 388,750 777,500 and 1,555,000, with no remainder.

Since 1,555,000 cannot be divided by just 1 and 1,555,000, it is not a prime number.


More Examples

Number 1,554,9981,554,9991,555,0011,555,002
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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