Q: Is 656,000 a Prime Number?
A: No, 656,000 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 656000 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 41 50 64 80 82 100 125 128 160 164 200 205 250 320 328 400 410 500 640 656 800 820 1,000 1,025 1,312 1,600 1,640 2,000 2,050 2,624 3,200 3,280 4,000 4,100 5,125 5,248 6,560 8,000 8,200 10,250 13,120 16,000 16,400 20,500 26,240 32,800 41,000 65,600 82,000 131,200 164,000 328,000 and 656,000, with no remainder.
Since 656,000 cannot be divided by just 1 and 656,000, it is not a prime number.