It is the unit's digit of the product of the unit's digits. For example, the units digit of 123456 * 4689 is simply the units digit of 6*9 = 54, which is 4.
what is the unit digit of the product if hundred 7"s r multiplied
the unit digit is 4
the unit digit is the last digit from left or ones digit
'5' is the UNIT digit. '6' is the 'tenths' digit. '9' is the 'hundredths' digit.
It is the unit's digit of the product of the unit's digits. For example, the units digit of 123456 * 4689 is simply the units digit of 6*9 = 54, which is 4.
what is the unit digit of the product if hundred 7"s r multiplied
Oh, dude, you want to know the unit's digits of the product of the first 21 prime numbers? Well, let me casually tell you that the unit's digit of a product depends on the unit's digits of the numbers being multiplied. Since the unit's digit of all prime numbers greater than 5 is either 1, 3, 7, or 9, the product of the first 21 prime numbers will end in a unit's digit that is a result of multiplying these digits together. Cool, right?
the unit digit is 4
the unit digit is the last digit from left or ones digit
'5' is the UNIT digit. '6' is the 'tenths' digit. '9' is the 'hundredths' digit.
72 is not a digit!
The unit's digit of x is not 0.
950. additive identity element = 0 5 + 9 = 14 5 * 9 = 45
The product of the ten one-digit numbers is 0.
Here's an example. In the number 382, the number 2 is the "unit's digit" (in the "unit's place"), 8 is the "ten's digit" (in the "ten's place"), and 3 is the "hundred's digit."
The unit digit of 3127173 is the unit digit of 7173. The other digits of 3127 are multiples of 10 and so they cannot contribute to the unit digit. Now the unit digits of the powers of 7 are Power -- Unit digit 0 -- 1 1 -- 7 2 -- 9 3 -- 3 4 -- 1 and you are back into the loop (of 1-7-9-3). So, you only need consider 7 to the power 173 modulo 4. That is, the remainder when 173 is divided by 4. 173 = 1 mod 4 So the unit digit of 3127173 is the same as the unit digit of 7173 which is the unit digit of 71 which is 7.