Q: Is 2,145,000 a Composite Number?

Why is 2,145,000 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 2,145,000 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 13 15 20 22 24 25 26 30 33 39 40 44 50 52 55 60 65 66 75 78 88 100 104 110 120 125 130 132 143 150 156 165 195 200 220 250 260 264 275 286 300 312 325 330 375 390 429 440 500 520 550 572 600 625 650 660 715 750 780 825 858 975 1,000 1,100 1,144 1,250 1,300 1,320 1,375 1,430 1,500 1,560 1,625 1,650 1,716 1,875 1,950 2,145 2,200 2,500 2,600 2,750 2,860 3,000 3,250 3,300 3,432 3,575 3,750 3,900 4,125 4,290 4,875 5,000 5,500 5,720 6,500 6,600 6,875 7,150 7,500 7,800 8,125 8,250 8,580 9,750 10,725 11,000 13,000 13,750 14,300 15,000 16,250 16,500 17,160 17,875 19,500 20,625 21,450 24,375 27,500 28,600 32,500 33,000 35,750 39,000 41,250 42,900 48,750 53,625 55,000 65,000 71,500 82,500 85,800 89,375 97,500 107,250 143,000 165,000 178,750 195,000 214,500 268,125 357,500 429,000 536,250 715,000 1,072,500 and 2,145,000, with no remainder.

Since 2,145,000 cannot be divided by just 1 and 2,145,000, 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).