Q: Is 135,420 a Prime Number?
A: No, 135,420 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 135420 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 37 60 61 74 111 122 148 183 185 222 244 305 366 370 444 555 610 732 740 915 1,110 1,220 1,830 2,220 2,257 3,660 4,514 6,771 9,028 11,285 13,542 22,570 27,084 33,855 45,140 67,710 and 135,420, with no remainder.
Since 135,420 cannot be divided by just 1 and 135,420, it is not a prime number.