A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 3710952 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 37 42 56 63 72 74 84 111 126 148 168 199 222 252 259 296 333 398 444 504 518 597 666 777 796 888 1,036 1,194 1,332 1,393 1,554 1,592 1,791 2,072 2,331 2,388 2,664 2,786 3,108 3,582 4,179 4,662 4,776 5,572 6,216 7,164 7,363 8,358 9,324 11,144 12,537 14,328 14,726 16,716 18,648 22,089 25,074 29,452 33,432 44,178 50,148 51,541 58,904 66,267 88,356 100,296 103,082 132,534 154,623 176,712 206,164 265,068 309,246 412,328 463,869 530,136 618,492 927,738 1,236,984 1,855,476 and 3,710,952, with no remainder.
Since 3,710,952 cannot be divided by just 1 and 3,710,952, it is not a prime number.