Q: Is 355,440 a Prime Number?
A: No, 355,440 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 355440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 1,481 2,962 4,443 5,924 7,405 8,886 11,848 14,810 17,772 22,215 23,696 29,620 35,544 44,430 59,240 71,088 88,860 118,480 177,720 and 355,440, with no remainder.
Since 355,440 cannot be divided by just 1 and 355,440, it is not a prime number.