Q: Is 542,340 a Prime Number?
A: No, 542,340 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 542340 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 23 30 36 45 46 60 69 90 92 115 131 138 180 207 230 262 276 345 393 414 460 524 655 690 786 828 1,035 1,179 1,310 1,380 1,572 1,965 2,070 2,358 2,620 3,013 3,930 4,140 4,716 5,895 6,026 7,860 9,039 11,790 12,052 15,065 18,078 23,580 27,117 30,130 36,156 45,195 54,234 60,260 90,390 108,468 135,585 180,780 271,170 and 542,340, with no remainder.
Since 542,340 cannot be divided by just 1 and 542,340, it is not a prime number.