Q: Is 661,700 a Prime Number?
A: No, 661,700 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 661700 can be evenly divided by 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 509 650 1,018 1,300 2,036 2,545 5,090 6,617 10,180 12,725 13,234 25,450 26,468 33,085 50,900 66,170 132,340 165,425 330,850 and 661,700, with no remainder.
Since 661,700 cannot be divided by just 1 and 661,700, it is not a prime number.