Q: Is 155,212,400 a Composite Number?

Why is 155,212,400 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 155,212,400 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 25 28 35 40 49 50 56 70 80 98 100 112 140 175 196 200 245 280 350 392 400 490 560 700 784 980 1,225 1,400 1,960 2,450 2,800 3,920 4,900 7,919 9,800 15,838 19,600 31,676 39,595 55,433 63,352 79,190 110,866 126,704 158,380 197,975 221,732 277,165 316,760 388,031 395,950 443,464 554,330 633,520 776,062 791,900 886,928 1,108,660 1,385,825 1,552,124 1,583,800 1,940,155 2,217,320 2,771,650 3,104,248 3,167,600 3,880,310 4,434,640 5,543,300 6,208,496 7,760,620 9,700,775 11,086,600 15,521,240 19,401,550 22,173,200 31,042,480 38,803,100 77,606,200 and 155,212,400, with no remainder.

Since 155,212,400 cannot be divided by just 1 and 155,212,400, 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).