Dividing to 1

Try to divide a number into 1. Use divisibility signs for numbers less than 10 (tap question mark in title for details). Divisibility by 2: the last digit to the right is an even number.Divisibility by 3: sum of digits is a number divisible by 3.Divisibility by 4: the last two digits to the right are 00 or a number divisible by 4 (ex: 72, 64, 32...).Divisibility by 5: the last digit on the right is 0 or 5.Divisibility by 6: the last digit on the right is an even number and the sum of the digits ...