Q: Is 1,440,000 a Composite Number?

Why is 1,440,000 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 1,440,000 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 64 72 75 80 90 96 100 120 125 128 144 150 160 180 192 200 225 240 250 256 288 300 320 360 375 384 400 450 480 500 576 600 625 640 720 750 768 800 900 960 1,000 1,125 1,152 1,200 1,250 1,280 1,440 1,500 1,600 1,800 1,875 1,920 2,000 2,250 2,304 2,400 2,500 2,880 3,000 3,200 3,600 3,750 3,840 4,000 4,500 4,800 5,000 5,625 5,760 6,000 6,400 7,200 7,500 8,000 9,000 9,600 10,000 11,250 11,520 12,000 14,400 15,000 16,000 18,000 19,200 20,000 22,500 24,000 28,800 30,000 32,000 36,000 40,000 45,000 48,000 57,600 60,000 72,000 80,000 90,000 96,000 120,000 144,000 160,000 180,000 240,000 288,000 360,000 480,000 720,000 and 1,440,000, with no remainder.

Since 1,440,000 cannot be divided by just 1 and 1,440,000, 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).