A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5414460 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 31 41 60 62 71 82 93 123 124 142 155 164 186 205 213 246 284 310 355 372 410 426 465 492 615 620 710 820 852 930 1,065 1,230 1,271 1,420 1,860 2,130 2,201 2,460 2,542 2,911 3,813 4,260 4,402 5,084 5,822 6,355 6,603 7,626 8,733 8,804 11,005 11,644 12,710 13,206 14,555 15,252 17,466 19,065 22,010 25,420 26,412 29,110 33,015 34,932 38,130 43,665 44,020 58,220 66,030 76,260 87,330 90,241 132,060 174,660 180,482 270,723 360,964 451,205 541,446 902,410 1,082,892 1,353,615 1,804,820 2,707,230 and 5,414,460, with no remainder.
Since 5,414,460 cannot be divided by just 1 and 5,414,460, it is not a prime number.