Q: Is 637,880 a Prime Number?
A: No, 637,880 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 637880 can be evenly divided by 1 2 4 5 8 10 20 37 40 74 148 185 296 370 431 740 862 1,480 1,724 2,155 3,448 4,310 8,620 15,947 17,240 31,894 63,788 79,735 127,576 159,470 318,940 and 637,880, with no remainder.
Since 637,880 cannot be divided by just 1 and 637,880, it is not a prime number.