Q: Is 55,640 a Prime Number?
A: No, 55,640 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 55640 can be evenly divided by 1 2 4 5 8 10 13 20 26 40 52 65 104 107 130 214 260 428 520 535 856 1,070 1,391 2,140 2,782 4,280 5,564 6,955 11,128 13,910 27,820 and 55,640, with no remainder.
Since 55,640 cannot be divided by just 1 and 55,640, it is not a prime number.