Q: Is 111,720 a Prime Number?
A: No, 111,720 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 111720 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 19 20 21 24 28 30 35 38 40 42 49 56 57 60 70 76 84 95 98 105 114 120 133 140 147 152 168 190 196 210 228 245 266 280 285 294 380 392 399 420 456 490 532 570 588 665 735 760 798 840 931 980 1,064 1,140 1,176 1,330 1,470 1,596 1,862 1,960 1,995 2,280 2,660 2,793 2,940 3,192 3,724 3,990 4,655 5,320 5,586 5,880 7,448 7,980 9,310 11,172 13,965 15,960 18,620 22,344 27,930 37,240 55,860 and 111,720, with no remainder.
Since 111,720 cannot be divided by just 1 and 111,720, it is not a prime number.