Q: Is 122,201,200 a Prime Number?

Why is 122,201,200 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 122201200 can be evenly divided by 1 2 4 5 8 10 11 16 20 22 25 40 44 50 55 80 88 100 110 176 200 220 275 400 440 550 880 1,100 2,200 4,400 27,773 55,546 111,092 138,865 222,184 277,730 305,503 444,368 555,460 611,006 694,325 1,110,920 1,222,012 1,388,650 1,527,515 2,221,840 2,444,024 2,777,300 3,055,030 4,888,048 5,554,600 6,110,060 7,637,575 11,109,200 12,220,120 15,275,150 24,440,240 30,550,300 61,100,600 and 122,201,200, with no remainder.

Since 122,201,200 cannot be divided by just 1 and 122,201,200, 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).