Q: Is 690,320 a Prime Number?
A: No, 690,320 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 690320 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 8,629 17,258 34,516 43,145 69,032 86,290 138,064 172,580 345,160 and 690,320, with no remainder.
Since 690,320 cannot be divided by just 1 and 690,320, it is not a prime number.