Q: Is 378,658 a Prime Number?
A: No, 378,658 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 378658 can be evenly divided by 1 2 7 14 17 34 37 43 74 86 119 238 259 301 518 602 629 731 1,258 1,462 1,591 3,182 4,403 5,117 8,806 10,234 11,137 22,274 27,047 54,094 189,329 and 378,658, with no remainder.
Since 378,658 cannot be divided by just 1 and 378,658, it is not a prime number.