Q: Is 661,490 a Prime Number?
A: No, 661,490 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 661490 can be evenly divided by 1 2 5 10 29 58 145 290 2,281 4,562 11,405 22,810 66,149 132,298 330,745 and 661,490, with no remainder.
Since 661,490 cannot be divided by just 1 and 661,490, it is not a prime number.