Q: Is 545,120 a Prime Number?
A: No, 545,120 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 545120 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 3,407 6,814 13,628 17,035 27,256 34,070 54,512 68,140 109,024 136,280 272,560 and 545,120, with no remainder.
Since 545,120 cannot be divided by just 1 and 545,120, it is not a prime number.