Q: Is 428,370 a Prime Number?
A: No, 428,370 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 428370 can be evenly divided by 1 2 3 5 6 10 15 30 109 131 218 262 327 393 545 654 655 786 1,090 1,310 1,635 1,965 3,270 3,930 14,279 28,558 42,837 71,395 85,674 142,790 214,185 and 428,370, with no remainder.
Since 428,370 cannot be divided by just 1 and 428,370, it is not a prime number.