Q: Is 139,840 a Prime Number?
A: No, 139,840 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 139840 can be evenly divided by 1 2 4 5 8 10 16 19 20 23 32 38 40 46 64 76 80 92 95 115 152 160 184 190 230 304 320 368 380 437 460 608 736 760 874 920 1,216 1,472 1,520 1,748 1,840 2,185 3,040 3,496 3,680 4,370 6,080 6,992 7,360 8,740 13,984 17,480 27,968 34,960 69,920 and 139,840, with no remainder.
Since 139,840 cannot be divided by just 1 and 139,840, it is not a prime number.