Q: Is 221,012,100 a Composite Number?

Why is 221,012,100 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 221,012,100 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 37 45 50 60 74 75 90 100 111 148 150 180 185 222 225 300 333 370 444 450 555 666 740 900 925 1,110 1,332 1,665 1,850 2,220 2,775 3,330 3,700 5,550 6,637 6,660 8,325 11,100 13,274 16,650 19,911 26,548 33,185 33,300 39,822 59,733 66,370 79,644 99,555 119,466 132,740 165,925 199,110 238,932 245,569 298,665 331,850 398,220 491,138 497,775 597,330 663,700 736,707 982,276 995,550 1,194,660 1,227,845 1,473,414 1,493,325 1,991,100 2,210,121 2,455,690 2,946,828 2,986,650 3,683,535 4,420,242 4,911,380 5,973,300 6,139,225 7,367,070 8,840,484 11,050,605 12,278,450 14,734,140 18,417,675 22,101,210 24,556,900 36,835,350 44,202,420 55,253,025 73,670,700 110,506,050 and 221,012,100, with no remainder.

Since 221,012,100 cannot be divided by just 1 and 221,012,100, 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).