1 and 653. It is a Prime number.
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653 and 5
1, 653, 761 and 496,933 itself.
No. Any number that ends in 1, 3, 5, 7 or 9 (odd single-digit numbers) are odd numbers. Numbers that end in 2, 4, 6, 8 or 0 (even single digit numbers) are considered even numbers. 653 ends in 3, which is an odd #, so it is considered odd, not even.
163, remainder 1
653 in Roman numerals is DCLIII.