Q: Is 1,689,840 a Composite Number?

Why is 1,689,840 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 1,689,840 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 2,347 4,694 7,041 9,388 11,735 14,082 18,776 21,123 23,470 28,164 35,205 37,552 42,246 46,940 56,328 70,410 84,492 93,880 105,615 112,656 140,820 168,984 187,760 211,230 281,640 337,968 422,460 563,280 844,920 and 1,689,840, with no remainder.

Since 1,689,840 cannot be divided by just 1 and 1,689,840, 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).