0
Still curious? Ask our experts.
Chat with our AI personalities
Coach
Taiga
MaxineAdd your answer:
Earn +20 pts
What are the thirteen two digit multiples of seven?
14,21,28,35,42,49,56,63,70,77,84,91,98
Why is any 2 digit number with 2 identical digits divisible by 11?
The 2-digit multiples of 11 all have identical digits.
What are the rules of multiples of 11?
The only multiples of 11 are 1 and itself, so it is a prime number. This is the answer to the question "what are the factors of 11". Multiples of 11 can be determined as follows. Find the sum, mod 11 of the alternate digits in the number. The difference will be zero. Examples: - 1,529. 1+2 = 3 [the thousands digit plus the tens digit], 5+9 = 14 which is 3(mod 11) [the hundreds digit plus the units digit]. Difference between the two sums is zero, therefore 1,529 is a multiple of 11 . 12,345. 1+3+5 = 9, 2+4 = 6. difference is 3, therefore 12,345 is not a multiple of 11.
What two-digit prime number has the sum of its digits that is not 7 but is a multiple of 7?
No two digit prime number exists that is a multiple of 7. All two digit numbers that are multiples of 7 are compositenumbers.
The sum of any two-digit number and the number formed by reversing the digits is always divisible by what?
The sum of any two-digit number and the number formed by reversing the digits is always divisible by 11. This is because when you add a two-digit number to its reverse, the result will always be a multiple of 11. This is because the difference between the original number and its reverse is always a multiple of 9, and when you add two multiples of 9, the sum will always be a multiple of 11.
