Q: Is 121,221,100 a Prime Number?
A: No, 121,221,100 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 121221100 can be evenly divided by 1 2 4 5 7 10 11 13 14 20 22 25 26 28 35 44 49 50 52 55 65 70 77 91 98 100 110 130 140 143 154 173 175 182 196 220 245 260 275 286 308 325 346 350 364 385 455 490 539 550 572 637 650 692 700 715 770 865 910 980 1,001 1,078 1,100 1,211 1,225 1,274 1,300 1,430 1,540 1,730 1,820 1,903 1,925 2,002 2,156 2,249 2,275 2,422 2,450 2,548 2,695 2,860 3,185 3,460 3,575 3,806 3,850 4,004 4,325 4,498 4,550 4,844 4,900 5,005 5,390 6,055 6,370 7,007 7,150 7,612 7,700 8,477 8,650 8,996 9,100 9,515 10,010 10,780 11,245 12,110 12,740 13,321 13,475 14,014 14,300 15,743 15,925 16,954 17,300 19,030 20,020 22,490 24,220 24,739 25,025 26,642 26,950 28,028 30,275 31,486 31,850 33,908 35,035 38,060 42,385 44,980 47,575 49,478 50,050 53,284 53,900 56,225 60,550 62,972 63,700 66,605 70,070 78,715 84,770 93,247 95,150 98,956 100,100 110,201 112,450 121,100 123,695 133,210 140,140 157,430 169,540 173,173 175,175 186,494 190,300 211,925 220,402 224,900 247,390 266,420 314,860 333,025 346,346 350,350 372,988 393,575 423,850 440,804 466,235 494,780 551,005 618,475 666,050 692,692 700,700 787,150 847,700 865,865 932,470 1,102,010 1,212,211 1,236,950 1,332,100 1,574,300 1,731,730 1,864,940 2,204,020 2,331,175 2,424,422 2,473,900 2,755,025 3,463,460 4,329,325 4,662,350 4,848,844 5,510,050 6,061,055 8,658,650 9,324,700 11,020,100 12,122,110 17,317,300 24,244,220 30,305,275 60,610,550 and 121,221,100, with no remainder.
Since 121,221,100 cannot be divided by just 1 and 121,221,100, it is not a prime number.
| Number | 121,221,098 | 121,221,099 | 121,221,101 | 121,221,102 |
| Prime? | no | no | no | no |