Q: Is 6,437,745 a Prime Number?
A: No, 6,437,745 is 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 6437745 can be evenly divided by 1 3 5 9 15 27 43 45 129 135 215 387 645 1,109 1,161 1,935 3,327 5,545 5,805 9,981 16,635 29,943 47,687 49,905 143,061 149,715 238,435 429,183 715,305 1,287,549 2,145,915 and 6,437,745, with no remainder.
Since 6,437,745 cannot be divided by just 1 and 6,437,745, it is not a prime number.