Q: Is 661,264 a Prime Number?
A: No, 661,264 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 661264 can be evenly divided by 1 2 4 8 16 37 74 148 296 592 1,117 2,234 4,468 8,936 17,872 41,329 82,658 165,316 330,632 and 661,264, with no remainder.
Since 661,264 cannot be divided by just 1 and 661,264, it is not a prime number.