Q: Is 421,130,421 a Prime Number?

 A: No, 421,130,421 is not a prime number.

Why is 421,130,421 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 421130421 can be evenly divided by 1 3 9 19 27 53 57 81 159 171 243 477 513 1,007 1,431 1,539 1,721 3,021 4,293 4,617 5,163 9,063 12,879 15,489 27,189 32,699 46,467 81,567 91,213 98,097 139,401 244,701 273,639 294,291 418,203 820,917 882,873 1,733,047 2,462,751 2,648,619 5,199,141 7,388,253 7,945,857 15,597,423 22,164,759 46,792,269 140,376,807 and 421,130,421, with no remainder.

Since 421,130,421 cannot be divided by just 1 and 421,130,421, it is not a prime number.


More Examples

Number 421,130,419421,130,420421,130,422421,130,423
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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