Q: Is 21,003,000 a Prime Number?
A: No, 21,003,000 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 21003000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 150 200 250 300 375 500 600 750 1,000 1,500 3,000 7,001 14,002 21,003 28,004 35,005 42,006 56,008 70,010 84,012 105,015 140,020 168,024 175,025 210,030 280,040 350,050 420,060 525,075 700,100 840,120 875,125 1,050,150 1,400,200 1,750,250 2,100,300 2,625,375 3,500,500 4,200,600 5,250,750 7,001,000 10,501,500 and 21,003,000, with no remainder.
Since 21,003,000 cannot be divided by just 1 and 21,003,000, it is not a prime number.
| Number | 21,002,998 | 21,002,999 | 21,003,001 | 21,003,002 |
| Prime? | no | no | yes | no |