Q: Is 260,640 a Prime Number?
A: No, 260,640 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 260640 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 181 240 288 360 362 480 543 720 724 905 1,086 1,440 1,448 1,629 1,810 2,172 2,715 2,896 3,258 3,620 4,344 5,430 5,792 6,516 7,240 8,145 8,688 10,860 13,032 14,480 16,290 17,376 21,720 26,064 28,960 32,580 43,440 52,128 65,160 86,880 130,320 and 260,640, with no remainder.
Since 260,640 cannot be divided by just 1 and 260,640, it is not a prime number.