Q: Is 121,220,120 a Prime Number?

 A: No, 121,220,120 is not a prime number.

Why is 121,220,120 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 121220120 can be evenly divided by 1 2 4 5 7 8 10 14 20 23 28 35 40 46 49 56 70 92 98 115 140 161 184 196 230 245 280 322 392 460 490 644 805 920 980 1,127 1,288 1,610 1,960 2,254 2,689 3,220 4,508 5,378 5,635 6,440 9,016 10,756 11,270 13,445 18,823 21,512 22,540 26,890 37,646 45,080 53,780 61,847 75,292 94,115 107,560 123,694 131,761 150,584 188,230 247,388 263,522 309,235 376,460 432,929 494,776 527,044 618,470 658,805 752,920 865,858 1,054,088 1,236,940 1,317,610 1,731,716 2,164,645 2,473,880 2,635,220 3,030,503 3,463,432 4,329,290 5,270,440 6,061,006 8,658,580 12,122,012 15,152,515 17,317,160 24,244,024 30,305,030 60,610,060 and 121,220,120, with no remainder.

Since 121,220,120 cannot be divided by just 1 and 121,220,120, 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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