Q: Is 42,001,720 a Prime Number?

 A: No, 42,001,720 is not a prime number.

Why is 42,001,720 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 42001720 can be evenly divided by 1 2 4 5 8 10 20 40 853 1,231 1,706 2,462 3,412 4,265 4,924 6,155 6,824 8,530 9,848 12,310 17,060 24,620 34,120 49,240 1,050,043 2,100,086 4,200,172 5,250,215 8,400,344 10,500,430 21,000,860 and 42,001,720, with no remainder.

Since 42,001,720 cannot be divided by just 1 and 42,001,720, it is not a prime number.


More Examples

Number 42,001,71842,001,71942,001,72142,001,722
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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