Q: Is 25,637,500 a Composite Number?

Why is 25,637,500 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 25,637,500 can be evenly divided by 1 2 4 5 7 10 14 20 25 28 35 50 70 100 125 140 175 250 293 350 500 586 625 700 875 1,172 1,250 1,465 1,750 2,051 2,500 2,930 3,125 3,500 4,102 4,375 5,860 6,250 7,325 8,204 8,750 10,255 12,500 14,650 17,500 20,510 21,875 29,300 36,625 41,020 43,750 51,275 73,250 87,500 102,550 146,500 183,125 205,100 256,375 366,250 512,750 732,500 915,625 1,025,500 1,281,875 1,831,250 2,563,750 3,662,500 5,127,500 6,409,375 12,818,750 and 25,637,500, with no remainder.

Since 25,637,500 cannot be divided by just 1 and 25,637,500, 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).