Q: Is 637,000 a Prime Number?
A: No, 637,000 is 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 637000 can be evenly divided by 1 2 4 5 7 8 10 13 14 20 25 26 28 35 40 49 50 52 56 65 70 91 98 100 104 125 130 140 175 182 196 200 245 250 260 280 325 350 364 392 455 490 500 520 637 650 700 728 875 910 980 1,000 1,225 1,274 1,300 1,400 1,625 1,750 1,820 1,960 2,275 2,450 2,548 2,600 3,185 3,250 3,500 3,640 4,550 4,900 5,096 6,125 6,370 6,500 7,000 9,100 9,800 11,375 12,250 12,740 13,000 15,925 18,200 22,750 24,500 25,480 31,850 45,500 49,000 63,700 79,625 91,000 127,400 159,250 318,500 and 637,000, with no remainder.
Since 637,000 cannot be divided by just 1 and 637,000, it is not a prime number.