Q: Is 42,007,440 a Prime Number?

 A: No, 42,007,440 is not a prime number.

Why is 42,007,440 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 42007440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 383 457 766 914 1,149 1,371 1,532 1,828 1,915 2,285 2,298 2,742 3,064 3,656 3,830 4,570 4,596 5,484 5,745 6,128 6,855 7,312 7,660 9,140 9,192 10,968 11,490 13,710 15,320 18,280 18,384 21,936 22,980 27,420 30,640 36,560 45,960 54,840 91,920 109,680 175,031 350,062 525,093 700,124 875,155 1,050,186 1,400,248 1,750,310 2,100,372 2,625,465 2,800,496 3,500,620 4,200,744 5,250,930 7,001,240 8,401,488 10,501,860 14,002,480 21,003,720 and 42,007,440, with no remainder.

Since 42,007,440 cannot be divided by just 1 and 42,007,440, it is not a prime number.


More Examples

  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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