Q: Is 542,790 a Prime Number?
A: No, 542,790 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 542790 can be evenly divided by 1 2 3 5 6 9 10 15 18 30 37 45 74 90 111 163 185 222 326 333 370 489 555 666 815 978 1,110 1,467 1,630 1,665 2,445 2,934 3,330 4,890 6,031 7,335 12,062 14,670 18,093 30,155 36,186 54,279 60,310 90,465 108,558 180,930 271,395 and 542,790, with no remainder.
Since 542,790 cannot be divided by just 1 and 542,790, it is not a prime number.