Q: Is 1,661,064 a Prime Number?
A: No, 1,661,064 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 1661064 can be evenly divided by 1 2 3 4 6 8 12 24 67 134 201 268 402 536 804 1,033 1,608 2,066 3,099 4,132 6,198 8,264 12,396 24,792 69,211 138,422 207,633 276,844 415,266 553,688 830,532 and 1,661,064, with no remainder.
Since 1,661,064 cannot be divided by just 1 and 1,661,064, it is not a prime number.