Q: Is 42,245,120 a Prime Number?

 A: No, 42,245,120 is not a prime number.

Why is 42,245,120 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 42245120 can be evenly divided by 1 2 4 5 8 10 16 20 32 37 40 64 74 80 128 148 160 185 223 256 296 320 370 446 512 592 640 740 892 1,024 1,115 1,184 1,280 1,480 1,784 2,230 2,368 2,560 2,960 3,568 4,460 4,736 5,120 5,920 7,136 8,251 8,920 9,472 11,840 14,272 16,502 17,840 18,944 23,680 28,544 33,004 35,680 37,888 41,255 47,360 57,088 66,008 71,360 82,510 94,720 114,176 132,016 142,720 165,020 189,440 228,352 264,032 285,440 330,040 528,064 570,880 660,080 1,056,128 1,141,760 1,320,160 2,112,256 2,640,320 4,224,512 5,280,640 8,449,024 10,561,280 21,122,560 and 42,245,120, with no remainder.

Since 42,245,120 cannot be divided by just 1 and 42,245,120, 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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