Q: Is 1,321,400 a Prime Number?
A: No, 1,321,400 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 1321400 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 6,607 13,214 26,428 33,035 52,856 66,070 132,140 165,175 264,280 330,350 660,700 and 1,321,400, with no remainder.
Since 1,321,400 cannot be divided by just 1 and 1,321,400, it is not a prime number.