Q: Is 265,640 a Prime Number?
A: No, 265,640 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 265640 can be evenly divided by 1 2 4 5 8 10 20 29 40 58 116 145 229 232 290 458 580 916 1,145 1,160 1,832 2,290 4,580 6,641 9,160 13,282 26,564 33,205 53,128 66,410 132,820 and 265,640, with no remainder.
Since 265,640 cannot be divided by just 1 and 265,640, it is not a prime number.