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

 A: No, 121,121,100 is not a prime number.

Why is 121,121,100 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 121121100 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 59 60 75 90 100 118 150 177 180 225 236 295 300 354 450 531 590 708 885 900 1,062 1,180 1,475 1,770 2,124 2,281 2,655 2,950 3,540 4,425 4,562 5,310 5,900 6,843 8,850 9,124 10,620 11,405 13,275 13,686 17,700 20,529 22,810 26,550 27,372 34,215 41,058 45,620 53,100 57,025 68,430 82,116 102,645 114,050 134,579 136,860 171,075 205,290 228,100 269,158 342,150 403,737 410,580 513,225 538,316 672,895 684,300 807,474 1,026,450 1,211,211 1,345,790 1,614,948 2,018,685 2,052,900 2,422,422 2,691,580 3,364,475 4,037,370 4,844,844 6,056,055 6,728,950 8,074,740 10,093,425 12,112,110 13,457,900 20,186,850 24,224,220 30,280,275 40,373,700 60,560,550 and 121,121,100, with no remainder.

Since 121,121,100 cannot be divided by just 1 and 121,121,100, 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).

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