Determine the Greatest Common Factor (GCF) of 400)

1,2,3,4,6,8,12,16,24,32,48,64,96,128,192,384

1,2,3,4,5,6,7,8,9,10,12,13,14,15,16,17,18,20,21,24,25,26,28,30,32,34,35,36,39,40,42,45,47,48,49,50,51,52,56,60,63,64,65,68,70,72,75,78,80,84,85,90,91,94,96,98,100,102,104,105,112,117,119,120,126,128,130,136,140,141,144,147,150,153,156,160,168,170,175,180,182,188,192,195,196,200,204,208,210,221,224,225,234,235,238,240,245,252,255,260,272,273,280,282,288,294,300,306,312,315,320,325,329,336,340,350,357,360,364,376,384

The common factors between them are 1,2,3,4,6,8,12,16,24,32,48,64,96,128,192,384

The greatest common factor between them is

Since the Greatest Common Factor of both numbers ≠ 1, the numbers are

Since the Greatest Common Factor of Both Numbers is both ≠ 1 and have a difference of two, the numbers are not twin prime

To see the LCM of these numbers, click the LCM button above