Without putting too much thought into it, you can just try dividing your two digit number by each and see if you come up with a whole number. One digit numbers you can skip are 0, 1, 4, 6, 8, and 9.
One two digit number that is not prime and is not a multiple of 2, 3, or 5 is 49. Another such number is 91.
A dividend is is a number to be divided and a divisor is a number to be divided into a dividend. Here the dividend is a three digit number and is divided by a one digit divisor. The quotient or result is a two digit number as stated. So in math terms, we can state that the dividend is a three digit number and that the divisor is a one digit number.
4 is the least one digit composite number
The ratio of the number of one-digit prime numbers to the number of one-digit composite numbers is one to one. The one-digit prime numbers are 2, 3, 5, and 7. The one-digit composite numbers are 4, 6, 8, and 9. Therefor, the ratio is 4:4, which simplifies to 1:1.
43
Divide the two-digit number by the one-digit number. If the remainder is zero then the 2-digit number is a multiple and if not, it is not.
Divide the 2-digit number by the 1-digit number. If the quotient comes out a whole number, then the big one is a multiple of the small one.
If the number is even, it is a multiple of 2 If the sum of the digits make a number divisible by 3, the number is a multiple of 3 If the number ends in 5 or 0, the number is a multiple of 5 If the number is divisible by 2 and 3, the number is a multiple of 6 If the sum of the digits make a number divisible by 9, the number is a multiple of 9
The digit immediately to the right of your target.
That means that the number has more than one digit.
a 3 digit number that is divisible by on is a three digit number that is a multiple of one.
The digit immediately to the right of the one you are rounding to.
One two digit number that is not prime and is not a multiple of 2, 3, or 5 is 49. Another such number is 91.
875 is one such number.
One million (1,000,000).
There are an infinite number of possibilities
Any multiple of four must be even; any number ending in three is odd. Look at the multiples of four from 1 to 9. They are in the order : 4,8,12,16,20,24,28,32,36. Now, any number when multiplied by 4, will have the one's digit as the one's digit of the above multiples In the above multiples, no multiple has 3 as the one's digit, i.e., no multiple ends in three. Take an example. 15x4 will have 0 in the one's digit because 5x4 = 20 and has 0 in the one's place.