Q: Is 13,640 a Prime Number?
A: No, 13,640 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 13640 can be evenly divided by 1 2 4 5 8 10 11 20 22 31 40 44 55 62 88 110 124 155 220 248 310 341 440 620 682 1,240 1,364 1,705 2,728 3,410 6,820 and 13,640, with no remainder.
Since 13,640 cannot be divided by just 1 and 13,640, it is not a prime number.