Q: Is 120,400 a Prime Number?
A: No, 120,400 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 120400 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 25 28 35 40 43 50 56 70 80 86 100 112 140 172 175 200 215 280 301 344 350 400 430 560 602 688 700 860 1,075 1,204 1,400 1,505 1,720 2,150 2,408 2,800 3,010 3,440 4,300 4,816 6,020 7,525 8,600 12,040 15,050 17,200 24,080 30,100 60,200 and 120,400, with no remainder.
Since 120,400 cannot be divided by just 1 and 120,400, it is not a prime number.