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What are all the factor pairs for 75?
The prime factors of 75 are 3,5,5 as 3*5*5=75. This can be determined by testing 75 for divisibility by prime numbers starting from 2. Using the prime factorization you can determine that all the factor pairs are (3*5)*5=15*5 and 3*(5*5)=3*25
Why does divisibility rule for 6 work?
By tautology. If it did not work, it would not be a divisibility rule!
What is the divisibility rule of 64?
There are two ways of answering this.Check the number for divisibility by 2.Check the quotient for divisibility by 2.Check the quotient for divisibility by 2.Check the quotient for divisibility by 2.Check the quotient for divisibility by 2.Check the quotient for divisibility by 2.For large numbers, the check can be restricted to the number formed by the last six digits.
What is the divisibility rule for 34?
There is no easy rule for divisibility by 34.
What is the divisibility rule of 25?
If the last two digits of a number are a multiple of 25 - i.e., 00, 25, 50, or 75 - then the number is divisible by 25. This is related to the fact that 100 is a multiple of 25.
