A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 8302632 can be evenly divided by 1 2 3 4 6 8 12 13 23 24 26 39 46 52 69 78 89 92 104 138 156 169 178 184 267 276 299 312 338 356 507 534 552 598 676 712 897 1,014 1,068 1,157 1,196 1,352 1,794 2,028 2,047 2,136 2,314 2,392 3,471 3,588 3,887 4,056 4,094 4,628 6,141 6,942 7,176 7,774 8,188 9,256 11,661 12,282 13,884 15,041 15,548 16,376 23,322 24,564 26,611 27,768 30,082 31,096 45,123 46,644 49,128 53,222 60,164 79,833 90,246 93,288 106,444 120,328 159,666 180,492 212,888 319,332 345,943 360,984 638,664 691,886 1,037,829 1,383,772 2,075,658 2,767,544 4,151,316 and 8,302,632, with no remainder.
Since 8,302,632 cannot be divided by just 1 and 8,302,632, it is not a prime number.