Q: Is 12,420 a Prime Number?
A: No, 12,420 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 12420 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 23 27 30 36 45 46 54 60 69 90 92 108 115 135 138 180 207 230 270 276 345 414 460 540 621 690 828 1,035 1,242 1,380 2,070 2,484 3,105 4,140 6,210 and 12,420, with no remainder.
Since 12,420 cannot be divided by just 1 and 12,420, it is not a prime number.