Q: Is 3,906,780 a Composite Number?

Why is 3,906,780 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 3,906,780 can be evenly divided by 1 2 3 4 5 6 10 12 15 19 20 23 30 38 46 57 60 69 76 92 95 114 115 138 149 190 228 230 276 285 298 345 380 437 447 460 570 596 690 745 874 894 1,140 1,311 1,380 1,490 1,748 1,788 2,185 2,235 2,622 2,831 2,980 3,427 4,370 4,470 5,244 5,662 6,555 6,854 8,493 8,740 8,940 10,281 11,324 13,110 13,708 14,155 16,986 17,135 20,562 26,220 28,310 33,972 34,270 41,124 42,465 51,405 56,620 65,113 68,540 84,930 102,810 130,226 169,860 195,339 205,620 260,452 325,565 390,678 651,130 781,356 976,695 1,302,260 1,953,390 and 3,906,780, with no remainder.

Since 3,906,780 cannot be divided by just 1 and 3,906,780, 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).