Q: Is 138,320 a Prime Number?
A: No, 138,320 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 138320 can be evenly divided by 1 2 4 5 7 8 10 13 14 16 19 20 26 28 35 38 40 52 56 65 70 76 80 91 95 104 112 130 133 140 152 182 190 208 247 260 266 280 304 364 380 455 494 520 532 560 665 728 760 910 988 1,040 1,064 1,235 1,330 1,456 1,520 1,729 1,820 1,976 2,128 2,470 2,660 3,458 3,640 3,952 4,940 5,320 6,916 7,280 8,645 9,880 10,640 13,832 17,290 19,760 27,664 34,580 69,160 and 138,320, with no remainder.
Since 138,320 cannot be divided by just 1 and 138,320, it is not a prime number.