Q: Is 155,358,400 a Composite Number?

Why is 155,358,400 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 155,358,400 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 64 80 89 100 160 178 200 320 356 400 445 712 800 890 1,091 1,424 1,600 1,780 2,182 2,225 2,848 3,560 4,364 4,450 5,455 5,696 7,120 8,728 8,900 10,910 14,240 17,456 17,800 21,820 27,275 28,480 34,912 35,600 43,640 54,550 69,824 71,200 87,280 97,099 109,100 142,400 174,560 194,198 218,200 349,120 388,396 436,400 485,495 776,792 872,800 970,990 1,553,584 1,745,600 1,941,980 2,427,475 3,107,168 3,883,960 4,854,950 6,214,336 7,767,920 9,709,900 15,535,840 19,419,800 31,071,680 38,839,600 77,679,200 and 155,358,400, with no remainder.

Since 155,358,400 cannot be divided by just 1 and 155,358,400, 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).