Q: Is 21,001,260 a Composite Number?

Why is 21,001,260 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 21,001,260 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 31 35 42 60 62 70 84 93 105 124 140 155 186 210 217 310 372 420 434 465 620 651 868 930 1,085 1,302 1,613 1,860 2,170 2,604 3,226 3,255 4,340 4,839 6,452 6,510 8,065 9,678 11,291 13,020 16,130 19,356 22,582 24,195 32,260 33,873 45,164 48,390 50,003 56,455 67,746 96,780 100,006 112,910 135,492 150,009 169,365 200,012 225,820 250,015 300,018 338,730 350,021 500,030 600,036 677,460 700,042 750,045 1,000,060 1,050,063 1,400,084 1,500,090 1,750,105 2,100,126 3,000,180 3,500,210 4,200,252 5,250,315 7,000,420 10,500,630 and 21,001,260, with no remainder.

Since 21,001,260 cannot be divided by just 1 and 21,001,260, it is a composite number.

More Examples

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