Q: Is 1,531,245 a Prime Number?
A: No, 1,531,245 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 1531245 can be evenly divided by 1 3 5 15 31 37 89 93 111 155 185 267 445 465 555 1,147 1,335 2,759 3,293 3,441 5,735 8,277 9,879 13,795 16,465 17,205 41,385 49,395 102,083 306,249 510,415 and 1,531,245, with no remainder.
Since 1,531,245 cannot be divided by just 1 and 1,531,245, it is not a prime number.