Q: Is 121,232,100 a Prime Number?

Why is 121,232,100 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 121232100 can be evenly divided by 1 2 3 4 5 6 10 11 12 15 17 20 22 25 30 33 34 44 50 51 55 60 66 68 75 85 100 102 110 132 150 165 170 187 204 220 255 275 300 330 340 374 425 510 550 561 660 748 825 850 935 1,020 1,100 1,122 1,275 1,650 1,700 1,870 2,161 2,244 2,550 2,805 3,300 3,740 4,322 4,675 5,100 5,610 6,483 8,644 9,350 10,805 11,220 12,966 14,025 18,700 21,610 23,771 25,932 28,050 32,415 36,737 43,220 47,542 54,025 56,100 64,830 71,313 73,474 95,084 108,050 110,211 118,855 129,660 142,626 146,948 162,075 183,685 216,100 220,422 237,710 285,252 324,150 356,565 367,370 404,107 440,844 475,420 551,055 594,275 648,300 713,130 734,740 808,214 918,425 1,102,110 1,188,550 1,212,321 1,426,260 1,616,428 1,782,825 1,836,850 2,020,535 2,204,220 2,377,100 2,424,642 2,755,275 3,565,650 3,673,700 4,041,070 4,849,284 5,510,550 6,061,605 7,131,300 8,082,140 10,102,675 11,021,100 12,123,210 20,205,350 24,246,420 30,308,025 40,410,700 60,616,050 and 121,232,100, with no remainder.

Since 121,232,100 cannot be divided by just 1 and 121,232,100, it is not a prime number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).