Q: Is 25,215,000 a Composite Number?

Why is 25,215,000 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 25,215,000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 41 50 60 75 82 100 120 123 125 150 164 200 205 246 250 300 328 375 410 492 500 600 615 625 750 820 984 1,000 1,025 1,230 1,250 1,500 1,640 1,681 1,875 2,050 2,460 2,500 3,000 3,075 3,362 3,750 4,100 4,920 5,000 5,043 5,125 6,150 6,724 7,500 8,200 8,405 10,086 10,250 12,300 13,448 15,000 15,375 16,810 20,172 20,500 24,600 25,215 25,625 30,750 33,620 40,344 41,000 42,025 50,430 51,250 61,500 67,240 76,875 84,050 100,860 102,500 123,000 126,075 153,750 168,100 201,720 205,000 210,125 252,150 307,500 336,200 420,250 504,300 615,000 630,375 840,500 1,008,600 1,050,625 1,260,750 1,681,000 2,101,250 2,521,500 3,151,875 4,202,500 5,043,000 6,303,750 8,405,000 12,607,500 and 25,215,000, with no remainder.

Since 25,215,000 cannot be divided by just 1 and 25,215,000, 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).