Q: Is 1,525,671 a Prime Number?
A: No, 1,525,671 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 1525671 can be evenly divided by 1 3 7 9 21 61 63 183 397 427 549 1,191 1,281 2,779 3,573 3,843 8,337 24,217 25,011 72,651 169,519 217,953 508,557 and 1,525,671, with no remainder.
Since 1,525,671 cannot be divided by just 1 and 1,525,671, it is not a prime number.